COBRA90GT said:It'll be fine, don't sweat it. You can run the current oil in there and switch back to 20 at the next oil change if you are overly concerned about the situation.
Ford switched their "official oil recommendation" from 30 to 20 weight oil so they could squeeze out better gas mileage in order to save money when it came to CAFE. The acronym CAFE stands for Corporate Average Fuel Economy. Think $$$.
KronicRacer said:depends on the year because remember there is a call for use of 0w20 which is insane.(too light IMO)
im using 10w30 in 105* fla heat when its not raining with no problems.
droptopponynj said:i've been using 5w30 or 10w30 in mine since it was new. Almost 10 years now without a problem. I do think my car manual recommends 5w30 for 96 but changed later i guess?
bdcardinal said:the 5-30 in an escape is fine. the 3.0L motor in that is the same Duratech theyve been using in the taurus' for years.
5-30 is fine in the mod motors. there was no changes in tolerances over the years. when i talked to the 07 GT500 engine designer he said that he personally suggests 5-30 because he doesnt trust the 20wt oils.
git-it-83 said:BD, you really talked to the gt500 designer? I also have wondered about the ability of the 20w oil to get up to and successfully lube the ENTIRE valvetrain and heads.....
bdcardinal said:ya i talked to him back in october at Howlin at Buttonwillow. this was when it was still called the 07 Cobra. he wouldnt tell me about the motor but said that it was "plenty powerful" and "bigger than a 4.6." he said he uses mobil 1 5w30 in most of his cars. he also said that SVT motors are not broken in from the factory. they just dump in motorcraft 5w20 and drop it in the car.
he also said that he worked onthe 00R, the terminator, and the Explorer 5.0 motor.
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