So I've been using M1 5w-30 and now just changed to m1 10w30 for the summer months. I've heard a lot of great things about this magical GC that even has it's own sub-forum!
Should I change it to GC? I have a Subaru WRX STi that has a turbo-charged 2.5L boxer engine. It sees single digit temps in the winter and 90+ degree in the summer.
Here is my recent UOA:
1st UOA: Castrol GTX 5w30
2nd UOA: Castrol Syntec 10w30
3rd UOA: M1 5w30
I would love the input on all the GC fans here!
Thanks!
Should I change it to GC? I have a Subaru WRX STi that has a turbo-charged 2.5L boxer engine. It sees single digit temps in the winter and 90+ degree in the summer.
Here is my recent UOA:
1st UOA: Castrol GTX 5w30
2nd UOA: Castrol Syntec 10w30
3rd UOA: M1 5w30
I would love the input on all the GC fans here!
Thanks!