Just bought a brand new 5.0 cheap. Has 373s and brembo pkg. Says 5w20 on cap Im guessing it doesn't have the boss radiator or oil cooler.
But I am hard on my cars can we use 5w50?
But I am hard on my cars can we use 5w50?
Can non track pack cars use 5w50?
- Thread starter CraZeeSTanG
- Start date
What model year is it?
NM, you said cheap new. Reading comprehension.
Your engine is mechanically the same as a Track Pack car minus the Boss cooling parts you mention. As I understand it (correct me if I'm wrong), Ford uses 5W50 in the Track Pack cars because of "expected usage" and 5W20 in the non-Track Pack cars for CAFE reasons.
NM, you said cheap new. Reading comprehension.
Your engine is mechanically the same as a Track Pack car minus the Boss cooling parts you mention. As I understand it (correct me if I'm wrong), Ford uses 5W50 in the Track Pack cars because of "expected usage" and 5W20 in the non-Track Pack cars for CAFE reasons.
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This, you should be able to run 5w50
You can... But why? I track my car some & dont even run 5w-50. I have been running amsoil signature series 10w-30 and Ive been very happy with it.
Look at the independent oil analysis thread.
Look at the independent oil analysis thread.
I should have posted this link in my original reply.
http://www.svtperformance.com/forum...5918-official-gt-5-0-boss-302-uoa-thread.html
Since I don't race my Track Pack car (Yet!), I run the Amsoil SS 10W30 based on the suggestions in that link.
http://www.svtperformance.com/forum...5918-official-gt-5-0-boss-302-uoa-thread.html
Since I don't race my Track Pack car (Yet!), I run the Amsoil SS 10W30 based on the suggestions in that link.
Ok thanks for the info, Ill go with mobil 1 10w30
Motorcraft 5w50 is a fairly sorry oil for the money. I certainly wouldn't use it over a good 5w30--10w40 oil.
I agree with this 100%
What about 0w40?
no need to run 5/50 unless you are tracking the hell out of it and it gets really hot while doing so. Filler cap reads 5/50, I run 0/30 in the winter and 0/40 in the summer and the only hard driving mine gets last for 1320 feet... LOL my coolant fan has already turned off when I get back to the pit... Hell I could run 0/20 for all that matters.
Why zero/number?, that oil is never thin enough no matter where you are on earth for cold start up protection.
Why zero/number?, that oil is never thin enough no matter where you are on earth for cold start up protection.
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I run my car really hard so 5w50 or 10w30? or 10w40?
If you don't live in frigid weather there's no reason to drop to a 0w oil. As a general rule of thumb the lower the spread between the two numbers the better the oil will resist shearing. Hence one of the reasons that the Motorcraft 5w50 is a shear monster.
Are you driving it in the Winter in NY? If not then 10w30 is what most that really push their cars here are using.
30 min sessions...
Im in Florida now for work. 10w30 seems to be the choice thanks.
Im in Florida now for work. 10w30 seems to be the choice thanks.
I use 5w-30 castrol synthetic .... Because I get it for free!!!!
Bingo! Motorcraft 5W-50 relies heavily on viscosity improving polymers that expand when heated, attempting to maintain a 50 grade lubricant. The problem is, VI polymers wear out rapidly, resulting in shear. In the first 1,500 miles, the lubricant has thinned to a light 40 grade/heavy 30 grade lubricant.
Far as warm/hot climates, I always sacrifice a lubricant's cold flow properties for a narrower SAE number spread. (i.e. using 10W-30 instead of 0W-30). Amsoil's Signature Series 10W-30 has the same cold flow performance as cheap, off the shelf, 5W-30 lubricants. It also has a very low NOACK percentage, which is a major advantage to oil vapors escaping into your engine via the PCV system. Also, 10W-30 will be more stable (shear resistant) than 0W-30.
I'd like to add one thing. Amsoil AZO 0W-30 has shown just as much shear resistance as Amsoil ATM 10W-30. I've never seen a UOA outside of the 10.x range, no matter the miles of use. Virgin is 10.5 cSt @ 100*C. However, AZO has a higher NOACK % when compared to ATM. Still, AZO has a lower NOACK than any off the shelf lubricant, Pennzoil Ultra excluded.
This can't be said about any other 0W-30 lubricant. AZO is the perfect compromise for northern daily driven cars who want 1 lubricant for year round performance in their high powered car.
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