alaska Posted May 3, 2010 Report Share Posted May 3, 2010 Doing 1st oil change and I currently use Amsoil on everything we own as I get commercial rate for my business, but I do not see any 5w-50 weight I see they have several race versions with 5w-30 and a 60 weight for race and super charged engines anyone using Amsoil and if so what weight? I don't want to have any warranty issues. Link to comment Share on other sites More sharing options...
Torched10 Posted May 3, 2010 Report Share Posted May 3, 2010 Doing 1st oil change and I currently use Amsoil on everything we own as I get commercial rate for my business, but I do not see any 5w-50 weight I see they have several race versions with 5w-30 and a 60 weight for race and super charged engines anyone using Amsoil and if so what weight? I don't want to have any warranty issues. be careful with racing oils--they have a high zinc phosphate content and will kill the cats over time.Id just get the motorcraft oil and sleep better,afetr all youve got a 50K car,why screw around for a few bucks Link to comment Share on other sites More sharing options...
ingram4868 Posted May 4, 2010 Report Share Posted May 4, 2010 I like the AMSOIL filters but I'll stick with the Ford Spec. oil for this engine Link to comment Share on other sites More sharing options...
dbackg Posted May 4, 2010 Report Share Posted May 4, 2010 I too use and like AMSOIL. However, the Owner's Manual is very specific regarding our 5.4L SC engine. Oil = Motorcraft 5w-50 full synthetic http://fcsdchemicalsandlubricants.com/main/product.asp?product=SAE%205W-50%20Full%20Synthetic%20Motor%20Oil&category=Motor%20Oil Ford Motorcraft oil is made and bottled by Conoco. 5w 50 that meets Ford spec WSS-M2C931-B. 6.5 quarts = NO more. http://www.fordpower.net/main/Press-Releases/Mustang/The-Shelby-GT500-Officialy-Rated-at-500-Horsepower.html Castrol makes a 5w 50 too. http://www.castrol.com/castrol/genericarticle.do?categoryId=82915470&contentId=6006933 I use FRPP – Oil filter - M-6731-FL820. http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=7703 Do a forum search, there is GOOD detail information on Oil & Filters. Ford WSS-M2C931-A spec (API service "SL") oil was the original formulation and comes with a "black" cap on the bottle. The newer WSS-M2C931-B oil (API service "SM") has reduced amounts of “ZDDP” wear resistant additive which has been linked to high mileage converter fouling and comes with a gold colored cap. I would think by now most of the "A" oil in inventory has been consumed as the switch to "B" oil was made quite some time ago. Both are equally acceptable in our engines and the newer "B" API SL oil has been reviewed (and tested) by the engine engineering team for acceptance. Use the lubrication fluids Ford recommends for both the engine AND (very important) the transaxle as well. You will thus have much more time available to worry about something else.. (and your engine and transaxle will be happy). Note, I do not work for Ford nor do I have any financial gain in promoting the use of their fluids. Link to comment Share on other sites More sharing options...
alaska Posted May 4, 2010 Author Report Share Posted May 4, 2010 Thanks I will stick with Motorcraft. Link to comment Share on other sites More sharing options...
i8acobra Posted May 4, 2010 Report Share Posted May 4, 2010 I use Eneos Oil. It's made by Nippon Oil. Full disclosure... I am a dealer, however I was a user before I became a dealer. They have 0W-20, which is what I use in my 3V GT. They also have 0W-50, which should work quite well for the GT500 motor. Link to comment Share on other sites More sharing options...
1badshelby Posted May 5, 2010 Report Share Posted May 5, 2010 Doing 1st oil change and I currently use Amsoil on everything we own as I get commercial rate for my business, but I do not see any 5w-50 weight I see they have several race versions with 5w-30 and a 60 weight for race and super charged engines anyone using Amsoil and if so what weight? I don't want to have any warranty issues. I use and sell Amsoil, but unfortunately they do not make a grade (5w-50) compatible with the gt500's 5.4. I use it in everything else I own including my lawn mower! Mike Link to comment Share on other sites More sharing options...
dbackg Posted June 4, 2010 Report Share Posted June 4, 2010 http://www.castrol.c...ntentId=6006933 Castrol 5W-50 = Meets WSS-M2C931-B Ford protection requirements for the 5.4L Ford GT & GT500. Checker Oreilly = Kragen = www.cskauto.com Monthly special. effective = 5-26-10 to 6-29-10. Buy five quarts of Castrol full Synthetic 5w-50 Syntec @ $4.60 per quart = 5 quarts max. And also get $1.00 off the Wix filter = GT500 = Wix part # 51372 = List $6.49 = $5.49 Wix also makes NapaGold filters. I believe they also make the Ford Racing M-6731-FL820. Wix = NASCAR filter. Link to comment Share on other sites More sharing options...
DDT Posted June 4, 2010 Report Share Posted June 4, 2010 I use Eneos Oil. It's made by Nippon Oil. Full disclosure... I am a dealer, however I was a user before I became a dealer. They have 0W-20, which is what I use in my 3V GT. They also have 0W-50, which should work quite well for the GT500 motor. 0W-20 Flying through the desert with 120 degrees ambient????????? No thank's..........My 3V GT likes Mobile1 5w-30 and tests show it flows better than 5w-20 at various hot and cold temps................... Link to comment Share on other sites More sharing options...
i8acobra Posted June 6, 2010 Report Share Posted June 6, 2010 I'll take Eneos over Mobil 1 any day and twice on Sunday. Link to comment Share on other sites More sharing options...
DDT Posted June 8, 2010 Report Share Posted June 8, 2010 I'll take Eneos over Mobil 1 any day and twice on Sunday. Than you are changing your beloved oil way too much????????? Link to comment Share on other sites More sharing options...
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