Owner's Manual Maintenance Schedule</title<link href="/diplomat.css" rel="stylesheet" type="text/css"> </head> <body><div id="content"> <table border="0" cellpadding="6" bgcolor="#99CCFF" align="center"> <tr class="menus"> <th><a href="/index.html">Home</a></th> <th><a href="/info/index.html">Diplomat Info</a></th> <th><a href="/registry/index.html">Registry</a></th> <th><a href="/upgrade/index.html"> Upgrades</a></th> <th><a href="/photo/index.html">Photos</a></th> <th><a href="/links.html">Links</a></th> <th><a href="/farley/index.html">Farley</a></th><th><a href="/tools/index.html">Site Tools</a></th> <th><a href="/svcman/index.html">Manual</a></th> <th><a href="https://www.dippy.org/forum2/">Forum</a></th> </tr> </table> <p> </p> <p align="center"><img src="/graphic/site/diplomat-cars.jpg" alt="Dodge Diplomat cars banner" width="792" height="77"></p> <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>  <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-7865546952023728" data-ad-format="auto"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> <table border="0" cellpadding="2" width="800"> <tr> <td width="175"> <style type="text/css"> @import url(http://www.google.com/cse/api/branding.css); </style> <div class="cse-branding-right" style="background-color:#000000;color:#FFFFFF"> <div class="cse-branding-form"> <form action="https://www.dippy.org/search-results.php" id="cse-search-box"> <div> <input type="hidden" name="cx" value="partner-pub-7865546952023728:5994239894" /> <input type="hidden" name="cof" value="FORID:10" /> <input type="hidden" name="ie" value="ISO-8859-1" /> <input type="text" name="q" size="31" /> <input type="submit" name="sa" value="Search" /> </div> </form> </div> <div class="cse-branding-logo"> <img src="http://www.google.com/images/poweredby_transparent/poweredby_000000.gif" alt="Google" /> </div> <div class="cse-branding-text"> Custom Search </div> </div> </td> <td width="250"><table border="1" cellspacing="1" width="100%" bgcolor="#52ABD6"> <tr> <td width="25%" bgcolor="#000000"> <p align="center"><font size="2"><a href="../index.html"><b>HOME</b></a><br> <nobr><a href="dipmschm.html">Next</a></nobr><br><a href="../tools/whatsnew.html">New</a><br> <a href="../tools/sitemap.html">Map</a></font></td> <td width="75" bgcolor="#000000"><font size="2"><nobr><a href="dipmsch.html">Up</a></nobr><br><nobr>Owner's Manual Maintenance Schedule</nobr><br><nobr><a href="dipmschm.html">Service Manual Maintenance Schedule</a></nobr><br><nobr><a href="dipmschh.html">Haynes Guide Maintenance Schedule</a></nobr> </font></td> </tr> </table></td> <td width="375"><table border="1" cellspacing="1" width="100%" bgcolor="#52ABD6"> <tr> <td bgcolor="#000000"> <table border="0" cellpadding="3" cellspacing="1" width="100%"> <tr> <td width="10%"><font size="2"><img src="../graphic/site/smallhood.gif" alt="smallhood.gif (1323 bytes)" width="30" height="45"></font></td> <td width="90%"><font face="Arial"><font color="#999999" size="1">www.dippy.org</font><br><strong><font color="#FFFFFF" size="3">Owner's Manual Maintenance Schedule</font></strong></font></td> </tr> </table> </td> </tr> </table></td> </table> </td></tr></table> </td><td valign="top" width="24"></td><td valign="top"> <p> </p> <p><font size="2"><b>This schedule is from the 1979 Dodge Diplomat/Magnum Owner's Manual. See bottom of page for Severe Service schedule items.</b></font></p> <p><font size="2"><b>Every 7,500 miles (12,000 km)</b><br> Apply solvent to carburetor choke shaft (or every six months)<br> Apply solvent to fast idle cam and pivot pin (or every six months)<br> Change engine oil (or every 12 months)<br> Replace engine oil filter (or every 12 months)<br> Check and adjust clutch pedal free play as required</font></p> <p><font size="2"><b>Every 15,000 miles (24,000 km)</b><br> Apply solvent to carburetor choke shaft (or every six months)<br> Apply solvent to fast idle cam and pivot pin (or every six months)<br> Check and adjust idle speed and air-fuel mixture as required<br> Replace oxygen sensor<br> Check operation of positive crankcase vent valve, replace if necessary<br> Replace spark plugs (without catalytic converter)<br> Check and adjust tappet adjustment as required (six cylinder engines)<br> Inspect all fuel system & underhood rubber and plastic components (emissions hoses) and replace if necessary<br> Change engine oil (or every 12 months)<br> Check and service cooling system (or every 12 months)<br> Check condition and tension of drive belts<br> Check and adjust clutch pedal free play as required</font></p> <p><font size="2"><b>Every 22,500 miles (36,000 km)</b><br> Apply solvent to carburetor choke shaft (or every six months)<br> Apply solvent to fast idle cam and pivot pin (or every six months)<br> Change engine oil (or every 12 months)<br> Replace engine oil filter (or every 12 months)<br> Check and adjust clutch pedal free play as required</font></p> <p><font size="2"><b>Every 30,000 miles (48,000 km)</b><br> Check and adjust automatic choke as required<br> Apply solvent to carburetor choke shaft (or every six months)<br> Replace carburetor air filter<br> Clean crankcase inlet filter<br> Apply solvent to fast idle cam and pivot pin (or every six months)<br> Replace fuel filter<br> Check and adjust idle speed and air-fuel mixture as required<br> Apply solvent to manifold heat control valve<br> Replace oxygen sensor<br> Replace positive crankcase vent valve<br> Replace spark plugs (with or without catalytic converter)<br> Check and adjust tappet adjustment as required (six cylinder engines)<br> Inspect all fuel system & underhood rubber and plastic components (emissions hoses) and replace if necessary<br> Replace vapor storage canister filter element<br> Change engine oil (or every 12 months)<br> Check and service cooling system (or every 12 months)<br> Drain, flush and refill cooling system at 24 months, and every 12 months thereafter<br> Check condition and tension of drive belts<br> Inspect brake linings<br> Inspect front wheel bearings<br> Lubricate ball joints and tie rod ends<br> Check and adjust clutch pedal free play as required</font></p> <p><font size="2"><b>Every 37,500 miles (60,000 km)</b><br> Apply solvent to carburetor choke shaft (or every six months)<br> Apply solvent to fast idle cam and pivot pin (or every six months)<br> Check operation of positive crankcase vent valve, replace if necessary<br> Change engine oil (or every 12 months)<br> Replace engine oil filter (or every 12 months)<br> Check and adjust clutch pedal free play as required</font></p> <p><font size="2"><b>Every 45,000 miles (72,000 km)</b><br> Apply solvent to carburetor choke shaft (or every six months)<br> Apply solvent to fast idle cam and pivot pin (or every six months)<br> Check and adjust idle speed and air-fuel mixture as required<br> Replace oxygen sensor<br> Replace spark plugs (without catalytic converter)<br> Check and adjust tappet adjustment as required (six cylinder engines)<br> Inspect all fuel system & underhood rubber and plastic components (emissions hoses) and replace if necessary<br> Change engine oil (or every 12 months)<br> Check and service cooling system (or every 12 months)<br> Drain, flush and refill cooling system at 24 months, and every 12 months thereafter<br> Check condition and tension of drive belts<br> Check and adjust clutch pedal free play as required</font></p> <p> </p> <p><font size="2"><b>SEVERE SCHEDULE<br> </b>For trailer towing, taxi, police and limousine vehicles</font></p> <p><font size="2"><b>Engine Oil</b><br> Change every 3 months or 3,000 miles (4,800 km)<br> <b>Engine Oil Filter</b><br> Replace at initial oil change and r\every other oil change thereafter<br> <b>Transmission Fluid</b><br> Change automatic every 15,000 miles (24,000 km), change filter, adjust bands<br> Change manual every 30,000 miles (48,000 km)<br> <b>Axle Oil</b><br> Change every 36,000 miles (58,000 km)<br> <b>Front Wheel Bearings</b><br> Inspect and lubricate every time drums or rotors are removed for service or inspection, and every 9,000 miles (14,000 km)<br> <b>Brake Linings</b><br> Inspect every 9,000 miles (14,000 km)<br> <b>Ball Joints and Tie Rod Ends</b><br> Lubricate every 18 months or 15,000 miles (24,000 km)<br> <b>Universal Joints</b><br> Inspect at every oil change<br> </font></td><td valign="top" width="24"></td><td valign="top" width="1%"> <table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td> </td> </tr> <tr> <td width="250"><table border="1" cellspacing="1" width="100%" bgcolor="#52ABD6"> <tr> <td width="25%" bgcolor="#000000"> <p align="center"><font size="2"><a href="../index.html"><b>HOME</b></a><br> <nobr><a href="dipmschm.html">Next</a></nobr><br><a href="../tools/whatsnew.html">New</a><br> <a href="../tools/sitemap.html">Map</a></font></td> <td width="75" bgcolor="#000000"><font size="2"><nobr><a href="dipmsch.html">Up</a></nobr><br><nobr>Owner's Manual Maintenance Schedule</nobr><br><nobr><a href="dipmschm.html">Service Manual Maintenance Schedule</a></nobr><br><nobr><a href="dipmschh.html">Haynes Guide Maintenance Schedule</a></nobr> </font></td> </tr> </table></td> <td width="375"><div style="text-align:center;"> <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>  <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-7865546952023728" data-ad-format="auto"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> <p align="center" style="font-size: small;"><img src="/graphic/site/bigdip_small.jpg" alt="Dodge Diplomat" width="100" height="26"><br> • Copyright © <script>document.write(new Date().getFullYear())</script> VerticalScope Inc. All rights reserved. Chrysler likenesses, nameplates, and brands are property of FCA US, LLC. • We cover Chrysler LeBaron/New Yorker/Fifth Avenue, Plymouth Gran Fury, and Dodge Diplomat cars</p> </div>   <script type="text/javascript"> var vsCFIsEU = vsCFIsEU || null; var vsCFUserGeoIP = vsCFUserGeoIP || null; var vsCFTagsEUFunctions = vsCFTagsEUFunctions || []; var vsCFTagsNonEuFunctions = vsCFTagsNonEuFunctions || []; var vsCFCookieLimit = vsCFCookieLimit || 1; //1 day function vsCFCreateCookie(name,value,days) { if (days) { var date = new Date(); date.setTime(date.getTime()+(days*24*60*60*1000)); var expires = "; expires="+date.toGMTString(); } else var expires = ""; document.cookie = name+"="+value+expires+"; path=/"; } function vsCFReadCookie(name) { var nameEQ = name + "="; var ca = document.cookie.split(";"); for(var i=0;i < ca.length;i++) { var c = ca[i]; while (c.charAt(0)==" ") c = c.substring(1,c.length); if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length); } return null; } //Execute ajax call to verify user EU GEOIP and start correct process. function vsCFSendAjax() { xhttp = new XMLHttpRequest(); xhttp.abort(); xhttp.onreadystatechange = function () { if (xhttp.readyState == 4) { if (xhttp.status == 200) { var jsonResponse = JSON.parse(xhttp.responseText); if (jsonResponse.status == true) { // if EU and execute eu tags vsCFIsEU = true; vsCFUserGeoIP = jsonResponse.geoip; vsCFExecuteEuTags(); } else { // if Non EU and execute Non eu tags vsCFIsEU = false; vsCFUserGeoIP = jsonResponse.geoip; vsCFExecuteNonEuTags(); } vsCFCreateCookie("vsCFIsEU", vsCFIsEU, vsCFCookieLimit); vsCFCreateCookie("vsCFUserGeoIP", vsCFUserGeoIP, vsCFCookieLimit); } } }; xhttp.open("GET", "/videoplayer/verify_user_eu_geoip.php?verifyUserGeoIp=true"); xhttp.setRequestHeader("X-Requested-With", "xmlhttprequest"); xhttp.send(); } function vsCFVerifyUserGeoIp(geoIps) { if (!vsCFUserGeoIP || !geoIps) return true; if (!(geoIps instanceof Array)) { geoIps = geoIps.replace("__gt__" , ""); geoIps = geoIps.split(','); } target = true; if (geoIps instanceof Array && geoIps[0] && geoIps[0] == "-") { target = false; // Exclusion is selected geoIps.shift(); } geoIPCountryCode = vsCFUserGeoIP; if (!geoIPCountryCode) return ((target) ? false : true); return ((target) ? (geoIps.includes(geoIPCountryCode) ? true : false) : (geoIps.includes(geoIPCountryCode) ? false : true)); } //Execute Eu Tags Function function vsCFExecuteEuTags() { for (f of vsCFTagsEUFunctions) { f(); } vsCFTagsEUFunctions = []; } //Execute None Eu Tags Function function vsCFExecuteNonEuTags() { for (f of vsCFTagsNonEuFunctions) { f(); } vsCFTagsNonEuFunctions = []; } </script>   <div class="afs_ads"> </div> <script> (function() { var adBlockDetector = function() { setTimeout(function() { if (!document.getElementsByClassName) return; var ads = document.getElementsByClassName("afs_ads"); ad = ads[ads.length - 1]; if (!ad || ad.innerHTML.length == 0 || ad.clientHeight === 0) { _gaq.push(["_trackEvent", "Adblock", "Blocked", "true",,true]); } else { ad.style.display = "none"; _gaq.push(["_trackEvent", "Adblock", "Unblocked", "false",,true]); } }, 500); } /* Attach a listener for page load */ if (window.addEventListener) { window.addEventListener("load", adBlockDetector, false); } else { window.attachEvent("onload", adBlockDetector); //IE } })(); </script>   <script type="text/javascript"> function vsCFCaptifyEU() { if (vsCFVerifyUserGeoIp('GB')) { if (typeof googlefc == "object") { googlefc.callbackQueue.push(function() { if ( gfchelper.isAdProviderAllowed("captify") ) { var _captifyAnalytics = _captifyAnalytics || []; _captifyAnalytics.push("3"); (function(){var s=document.createElement("script"), t=document.getElementsByTagName("script")[0];s.type="text/javascript";s.async=true; s.defer=true;s.src="//p.cpx.to/p/11003/px.js?r="+(65536*(1+Math.random())|0). toString(16);t.parentNode.insertBefore(s,t)})(); } }); } else { console.log("cf: captify googlefc not found."); } } } //Add captify tag functions to eu and non-eu arrays. vsCFTagsEUFunctions.push(vsCFCaptifyEU); </script>   <script type="text/javascript"> function vsCFCaptifyUSNonEU() { if (vsCFVerifyUserGeoIp('US')) { var captify_kw_query_11825 = ""; (function(c,a,p,t,i,f,y){i=c.createElement(a);t=c.getElementsByTagName(a)[0];i.type='text/javascript';i.async=true;i.src=p;t.parentNode.insertBefore(i,t);})(document,'script','https://p.cpx.to/p/11825/px.js'); } } vsCFTagsNonEuFunctions.push(vsCFCaptifyUSNonEU); </script>   <style> .tos_dmca_policy { text-align: center; } .tos_dmca_policy table { display: inline-table; width: auto; } .tos_dmca_policy table { display: inline-table; width: auto; margin: 0 10px; } </style> <div class="tfoot tos_dmca_policy"> <table cellpadding="3" cellspacing="0" border="0" class="page" align="center" width="100%"><tr><td class="tfoot" align="center" width="100%"><div class="smallfont"><strong><a rel="nofollow" href="http://www.verticalscope.com/aboutus/tos.php?site=dippy.org">Terms of Use</a></strong></div></td></tr></table> <table cellpadding="3" cellspacing="0" border="0" class="page" align="center" width="100%"><tr><td class="tfoot" align="center" width="100%"><div class="smallfont"><strong><a rel="nofollow" href="http://www.verticalscope.com/copyright.html?site=dippy.org">Copyright</a></strong></div></td></tr></table> <table cellpadding="3" cellspacing="0" border="0" class="page" align="center" width="100%"><tr><td class="tfoot" align="center" width="100%"><div class="smallfont"><strong><a rel="nofollow" href="https://www.verticalscope.com/site-privacy-policy/index.php?site=dippy.org">Privacy Policy</a></strong></div></td></tr></table> <table cellpadding="3" cellspacing="0" border="0" class="page" align="center" width="100%"><tr><td class="tfoot" align="center" width="100%"><div class="smallfont"><strong><a class="qc-ccpa-persistent-link" style="display: none; cursor: pointer;">Do Not Sell My Data</a></strong></div></td></tr></table></div>   <script type="text/javascript"> var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-113140826-2']); _gaq.push(['_setDomainName', '.dippy.org']); _gaq.push(['_gat._anonymizeIp']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); </script>  <script src="https://contributor.google.com/scripts/5e763cfe1b429dfd/loader.js"></script><script>window.googlefc = window.googlefc || {}; googlefc.callbackQueue = googlefc.callbackQueue || [];</script><script src="https://fundingchoices.google.com/f/AGSKWxVXYuMw5O-vd8ingePEDW4jJyMlJuxG4XJ8tM42RgfyJaR2nvryP7dFTWVAhF5zwXjXC_1XUmg="></script><iframe name="googlefcPresent" style="display: none; width: 0px; height: 0px; border: none; z-index: -1000; left: -1000px; top: -1000px;"></iframe> <script> gfpPropertiesApiPartnersJson = '{"viglink": "fc-company-5e763cfe1b429dfd-36145872e355e834", "captify": "fc-company-5e763cfe1b429dfd-4302d6bb4ac6b514"}'; if (gfpPropertiesApiPartnersJson) gfpPropertiesApiPartnersJson = JSON.parse(gfpPropertiesApiPartnersJson); var gfDefaultFcPartners = []; gfDefaultFcPartners["appnexus"] = "80"; gfDefaultFcPartners["comscore"] = "62"; gfDefaultFcPartners["dfp"] = "229"; gfDefaultFcPartners["indexexchange"] = "126"; gfDefaultFcPartners["liveramp"] = "12"; gfDefaultFcPartners["openx"] = "363"; gfDefaultFcPartners["rubicon"] = "1029"; gfDefaultFcPartners["sovrn"] = "2706"; gfDefaultFcPartners["taboola"] = "86"; var gfAllFcPartners = []; /* If gfpPropertiesApiPartnersJson not empty, write dynamic partners */ if (gfpPropertiesApiPartnersJson) for(var key in gfpPropertiesApiPartnersJson) gfAllFcPartners[key] = gfpPropertiesApiPartnersJson[key]; /* Always write default Fc partners */ for(var key in gfDefaultFcPartners) gfAllFcPartners[key] = gfDefaultFcPartners[key]; /* Custom FC functions here */ var gfchelper = window.gfchelper || { adProviders: gfAllFcPartners, isAdProviderAllowed: function( providerName ) { if( !providerName || typeof googlefc === 'undefined' || typeof googlefc.getConsentedProviderIds === 'undefined' //|| googleprivacySettings.trackUserOk === false ) { return false; } // get google FC Consented provider Ids for the current site let consentedIds = googlefc.getConsentedProviderIds() || []; // Allow only those we want and are allowed return !!consentedIds.find( p => gfchelper.adProviders[ providerName.toLowerCase() ] && p === gfchelper.adProviders[ providerName.toLowerCase() ] ); } }; </script>  <script type="text/javascript"> function vsCFComscoreEU() { if (typeof googlefc == "object") { googlefc.callbackQueue.push(function() { if ( gfchelper.isAdProviderAllowed("comscore") ) { var _comscore = _comscore || []; _comscore.push({ c1: "2", c2: "6036030", c4: "dippy.org" }); (function() { var s = document.createElement("script"), el = document.getElementsByTagName("script")[0]; s.async = true; s.src = (document.location.protocol == "https:" ? "https://sb" : "http://b") + ".scorecardresearch.com/beacon.js"; el.parentNode.insertBefore(s, el); })(); } }); } else { console.log("cf: comscore googlefc not found."); } } function vsCFComscoreNonEU() { var _comscore = _comscore || []; _comscore.push({ c1: "2", c2: "6036030", c4: "dippy.org" }); (function() { var s = document.createElement("script"), el = document.getElementsByTagName("script")[0]; s.async = true; s.src = (document.location.protocol == "https:" ? "https://sb" : "http://b") + ".scorecardresearch.com/beacon.js"; el.parentNode.insertBefore(s, el); })(); } //Add comscore tag functions to eu and non-eu arrays. vsCFTagsEUFunctions.push(vsCFComscoreEU); vsCFTagsNonEuFunctions.push(vsCFComscoreNonEU); </script>   <script type="text/javascript"> function vsCFViglinkEU() { if (typeof googlefc == "object") { googlefc.callbackQueue.push(function() { if ( gfchelper.isAdProviderAllowed("viglink") ) { vglnk = {key: '3ead911b5a0ffc93cbcdf3dfc33af6bc'}; (function(d, t) { var s = d.createElement(t); s.type = 'text/javascript'; s.async = true; s.src = '//cdn.viglink.com/api/vglnk.js'; var r = d.getElementsByTagName(t)[0]; r.parentNode.insertBefore(s, r); }(document, 'script')); } }); } else { console.log("cf: viglink googlefc not found."); } } function vsCFViglinkNoneEU() { vglnk = {key: '3ead911b5a0ffc93cbcdf3dfc33af6bc'}; (function(d, t) { var s = d.createElement(t); s.type = 'text/javascript'; s.async = true; s.src = '//cdn.viglink.com/api/vglnk.js'; var r = d.getElementsByTagName(t)[0]; r.parentNode.insertBefore(s, r); }(document, 'script')); } //Add viglink tag functions to eu and non-eu arrays. vsCFTagsEUFunctions.push(vsCFViglinkEU); vsCFTagsNonEuFunctions.push(vsCFViglinkNoneEU); </script>  <script type="text/javascript"> if (typeof(jQuery) == "undefined") { document.write('<scr' + 'ipt src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></scr' + 'ipt>'); } </script> <script type="text/javascript"> jQuery(function($) { $.ajax({ dataType: "json", type: "GET", url: "/videoplayer/cookie_consent.php?verifyUserGeoIp=true&sitename=dippy.org", success: function(response){ if (response.status == true) { $("body").append(response.data); eval(document.getElementById("vs_cookie_consent").innerHTML); } } }); });</script>  <script type="text/javascript"> ggpid=2274; function vsCFGumgumNonEU() { (function() { var s = document.createElement("script"); s.src = "https://js.gumgum.com/services.js"; document.body.appendChild( s ); })(); } //Add gumgum tag functions to non-eu arrays. vsCFTagsNonEuFunctions.push(vsCFGumgumNonEU); </script>   <script type="text/javascript"> //Check if GEOIP cookie exists. if (vsCFIsEU === null) { vsCFIsEU = vsCFReadCookie("vsCFIsEU"); vsCFUserGeoIP = vsCFReadCookie("vsCFUserGeoIP"); } //Main checks to start new process or use existing data. if (vsCFIsEU === null && (vsCFTagsEUFunctions.length > 0 || vsCFTagsNonEuFunctions.length > 0)) { vsCFSendAjax(); } else if (vsCFIsEU === false || vsCFIsEU === "false") { vsCFExecuteNonEuTags(); } else if (vsCFIsEU === true || vsCFIsEU === "true") { vsCFExecuteEuTags(); } </script>   </td> </table> (<a href="http://www.valiant.org/">Valiant, Duster, and Dart</a>) <p> </p> <p> </p> <p> </p> <p> </p> </td></tr></table></body> </html>