hi

my i am about to hit 103k miles on my max it has been sc for the past 6k miles. i am also due for an oil change. any recommendations on motor oil. i have been using mobil1 full syntitic 10w-30 for the past year or so. sould i stay with 10w30 or switch to a different rating.

thanks
frank

 

my oil report indiciates a satisfactory result of mobil 1 supersyn 5w30 under boost. the link to the thread is in my sig.


Mardigrasmax uses Redline....the result is even better. His report is in Bill's oil report.

 

so just drail it and refill with 5w30 and that it????

 

I would just stick with 10w30 since you have been using them for a while.

but if you want to switch to 5w30, I would drain it really well and put a short milage on the first run of 5w30.

 

use amsoil... amsoil is much better then Mobil 1

 

I supercharged the max at 100k miles back in ... November? I'm on Mobil1 10w30 and it's doing alright. However, There's no oil analysis, so I plan on switching to 10w30 Redline if I can find it next time.

 

I thought 5w30 was too thin a blend for our sc blower. 10w30 is better for the bearings?

 

I've been running 0W-30 Mobil 1...

Frank, you don't need to "flush" it out... just use the weight you want on your next oil change.... I use 0W-30 cuz of all the short trips to work.

 

It depends on how cold the ambient temperature is. In some places you need a 5W30 for sufficient low temperature fluidity.

That being said, with multi-viscosity oils, the smaller the spread between the two viscosities the better. The oil having the best viscosity index (dependency of viscosity on temperature) is a single grade oil. So the best thing to do would be to use a single grade oil and then change it and go to higher or lower grades as the average temperature changes with the seasons. This is not always practical, hence the market for multi-grade oils. If you are in an area where a 10W30 is adequate, then going to a 5W30 or 0W30 can be detrimental to your engine or blower if operated at the upper temperature extreme. You won't get the same protection as a 10W30, even though they are all ostensibly 30 weight.

There is some very informative reading in one of the FAQs on this.

 

So then in the winter is it ok to use 5w30 with a v2 sc?