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[Thread Backward] Re: OIl change interval Ford vs. NavistaMsg # 5124 of 8004 on Powerstroke Diesel Conference (1)To: Jerry, From: Mark Time: Tuesday 01-27-98, 06:20 pm Jerry, Expand capacity by installing a remote filter adapter on your PSD then use large diameter tubing and an in-line pressure tank expansion is only limited by the availible space. Oil changes will be bi**h though. Mark On Tuesday 01-27-98, 05:00 pm, Jerry said: -Wish I knew of a semi easy way to add capacity to -the system. Jerry. - - On Tuesday 01-27-98, 02:14 pm, Larry said: --This is exactly what I was told when I called the --Navistar help number and asked the oil change --interval question. -- --Larry -- -- On Tuesday 01-27-98, 12:44 pm, Jay Chlebowski -said: --- On Tuesday 01-27-98, 11:39 am, Janos Dosa said: ----Ford recommends 3000/5000miles for heavy --duty/light ----duty usage. At the same time Navistar has 8000 ----miles recommendation with large filter. ---- ----Most of the Ford trucks are in the light PU ----category. Most of the Navistar trucks are in --medium ----category. ---- ----Why change oil so frequently if the engine ----manufacturer recommends longer interval for oil ----change? ---- ----More frequent oil change is more expensive and ----polluting enviroinment. ---- ----Opinions? --- ---Howdy Janos! --- ---I'd say there are two factors enabling Navistar's ---longer oil change intervals. --- ---1. Higher oil capacity. The T444E holds 17 -quarts ---vs. the 14 in the PowerStroke version of the ---engine. The difference probably results from Ford ---using a smaller oil pan to fit within the confines ---of the F & E-series vehicles. Since diesels are ---epsecially prone to soot accumulation in the oil ---(and the resulting wear that can occur), the -higher ---capacity of oil translates in the ability to hold ---more soot in suspension before a change is ---necessary. --- ---2. The Extender filter technology. Now, I'm not ---exactly sure how Navistar makes and/or specs the ---Extender filters, but the 8,000 mile interval is ---always footnoted as requiring the Extender -filters. ---I'd say they're at least partially synthetic with ---the ability to trap finer dirt & wear particles. --- ---Best Regards, ---Jay Replies to this message:
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