Quote:
Originally Posted by Fleshy
I guess i was not clear with my point on my post. I am not talking about extremely cold conditions and am well aware of factory recommended vs racing oil differences.
I am saying whats the point of going to a 5w-10w vs 0w...strictly referring to group V or IV (due to the lack of VI additives and base used) and forgoing the benefits that we would see even here in a warm climate during a cold start and just stepping up to 0w-30 and seeing the same SAE 30 during track vs a 5w-30. Only referring to a double duty street and track driven car here.
|
Realistically? A 0W base stock will be thinner at temp, than a 5W or 10W base stock. Even with 300V. 30W is a range, of viscosities, not a hard number. The oil does get a bit toasty at temp...
FWIW, we saw no hp difference between the factory fill 0W20 and 5W30 300V on the dyno. Not even within the range of error.