Originally Posted By: INDYMAC
I believe this Coyote engine came from down under.
It Ford of North America designed, Canadian built.
Quote:
I wouldn't be looking for an engine oil that meets CAFE standards and might even last through the warranty period. Like you, I would be trying to find the best oil for the engine to last as long as possible, and run great too. So, I understand your dilemma. Good luck with that fun car!
I tend to agree. Somewhere around 430 honest flywheel horsepower, 302 cubic inches, 7000 rpm, likely hard use in a Mustang, no factory oil cooler. 5W-20 will be fine for a long time obviously, but that's not to say the engine won't benefit from a slightly thicker oil.
Originally Posted By: Mike Riley - Product Design Engineer with Ford Motor Company
Moving to 5w20 was driven by ... CAFE requirements. The company believes the switch to lighter viscosity 5w20 oils will reduce carbon dioxide emissions by 190,000 metric tons a year and reduce US fuel consumption by over 21,000,000 gallons a year.
Originally Posted By: FRPP Group
DO NOT go back to using 5w-20
Originally Posted By: Scott Whitehead - Engine Development Systems Engineer, Ford Motor Company
I've seen the dyno testing. I've probably looked at several hundred engines disassembled and spread out on inspection tables. And I've been involved in testing to resolve issues where varying the oil viscosity was part of the test. Please do not put 5w-20 or less into a mod motor. Please. This is especially true in 4v motors. 5W-30 is probably a good oil for the street with mixed temperatures.
I believe this Coyote engine came from down under.
It Ford of North America designed, Canadian built.
Quote:
I wouldn't be looking for an engine oil that meets CAFE standards and might even last through the warranty period. Like you, I would be trying to find the best oil for the engine to last as long as possible, and run great too. So, I understand your dilemma. Good luck with that fun car!
I tend to agree. Somewhere around 430 honest flywheel horsepower, 302 cubic inches, 7000 rpm, likely hard use in a Mustang, no factory oil cooler. 5W-20 will be fine for a long time obviously, but that's not to say the engine won't benefit from a slightly thicker oil.
Originally Posted By: Mike Riley - Product Design Engineer with Ford Motor Company
Moving to 5w20 was driven by ... CAFE requirements. The company believes the switch to lighter viscosity 5w20 oils will reduce carbon dioxide emissions by 190,000 metric tons a year and reduce US fuel consumption by over 21,000,000 gallons a year.
Originally Posted By: FRPP Group
DO NOT go back to using 5w-20
Originally Posted By: Scott Whitehead - Engine Development Systems Engineer, Ford Motor Company
I've seen the dyno testing. I've probably looked at several hundred engines disassembled and spread out on inspection tables. And I've been involved in testing to resolve issues where varying the oil viscosity was part of the test. Please do not put 5w-20 or less into a mod motor. Please. This is especially true in 4v motors. 5W-30 is probably a good oil for the street with mixed temperatures.