Simple as that! 
How to switch to synthetic?
Joined: Nov 2001
Posts: 34,629
Likes: 2,550
From: Schiller Park, ILL Member: #317
Originally Posted by Kalgorn
Know what kind of oil you're supposed to break in an engine with? Good ol' dino oil. 
Of course an aftermarket built engine might have a different recommendation specifically from the builder, in which case you should always follow your builder's advice. But you'd be fine with synthetic in a new, factory stock LS1.
TECH Enthusiast
Joined: Jan 2006
Posts: 616
Likes: 0
From: Des Moines, IA
I switched from M1 5w-30 to GC 0w-30 with no problem at all. Engine ran way better then it did with M1 5w-30 (non synth.) Also in my Camaro (v-6) i went between valveline and M1 all the time depending on how much cash i had, never had problems with it and it had 129,000 miles on it (it was a 2000)
what do ya'll think about mobil-1 full synthetic...pretty good oil for the money???...i swapped to it about 3 changes ago after reading in a LS1 performance book that it was recommended...any thoughts?...whats the big deal with the german castrol???
Thread Starter
Launching!
Joined: Apr 2005
Posts: 232
Likes: 0
From: Florida
Originally Posted by whytryz28
You can switch from synthetic to non synthetic but not the other way around, non synthetic doesnt run as smooth as synthetic and that frees the engine up alot. Ive burnt through rings on my old engine cause the lack of what oil was used when i bought it.
That is the first time Ive ever heard that before. Ive always heard you can always switch to synthetic but once you do you could never switch back, even in shop class in high school. I see now though everyone is saying you can switch back and forth. I just want to switch over and never look back, I doubt it will be going back to non-synthetic.
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Joined: Nov 2001
Posts: 34,629
Likes: 2,550
From: Schiller Park, ILL Member: #317
Originally Posted by Mr Incredible
You could switch back and forth every day and do nothing but wear out your drain plug.
