Which Amsoil to run?
Thread Starter
Staging Lane
Joined: Jul 2004
Posts: 55
Likes: 0
From: Bartlett, IL
Which Amsoil to run? I'm changin to Amsoil next oil change and i was wondering which one to use? Which one do u run?
I was thinkin this one would be a good choice......
(AMO) SAE 10W-40 Synthetic High Performance Motor Oil
But i remember seein some of u used the european formula...
(AFL) European Car Formula Synthetic 5W-40 Motor Oil
And i'm gonna be changin the tranny fluid soon...so would changin to amsoil be a good idea? or should i just stick with whatever the stock GM stuff is?
I was thinkin this one would be a good choice......
(AMO) SAE 10W-40 Synthetic High Performance Motor Oil
But i remember seein some of u used the european formula...
(AFL) European Car Formula Synthetic 5W-40 Motor Oil
And i'm gonna be changin the tranny fluid soon...so would changin to amsoil be a good idea? or should i just stick with whatever the stock GM stuff is?
Hey man..i usually run GC, but this past oil change i tried the European formula 5w40..my motor def. seems to be a little quieter, but it could be due to the fact that the weather is a little warmer now. My car seems to hold great oil pressure with the 5w40 also. Do any of you have a UOA with this oil? i'd be interested to see how it performs compared to GC.
TECH Senior Member
Joined: Nov 2001
Posts: 7,234
Likes: 1
From: Mississauga, Ontario
Originally Posted by WiseguyZ28
So the european formula is the best choice then? since its 5w40?
Trending Topics
Originally Posted by WiseguyZ28
I'm changin to Amsoil next oil change and i was wondering which one to use? Which one do u run?
I was thinkin this one would be a good choice......
(AMO) SAE 10W-40 Synthetic High Performance Motor Oil
But i remember seein some of u used the european formula...
(AFL) European Car Formula Synthetic 5W-40 Motor Oil
And i'm gonna be changin the tranny fluid soon...so would changin to amsoil be a good idea? or should i just stick with whatever the stock GM stuff is?
I was thinkin this one would be a good choice......
(AMO) SAE 10W-40 Synthetic High Performance Motor Oil
But i remember seein some of u used the european formula...
(AFL) European Car Formula Synthetic 5W-40 Motor Oil
And i'm gonna be changin the tranny fluid soon...so would changin to amsoil be a good idea? or should i just stick with whatever the stock GM stuff is?
Do some research and draw your own conclusions. There is a lot of good oil out there today. I believe Amsoil and Mobil1 are at the top of the list. just depends on what you need.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
12 Second Club
Joined: Sep 2005
Posts: 4,273
Likes: 0
From: Bucks County, Pa.
Originally Posted by Patman
Yes, the European 5w40 is definitely the best choice for the LS1 out of the Amsoil lineup.
TECH Senior Member
Joined: Nov 2001
Posts: 7,234
Likes: 1
From: Mississauga, Ontario
Originally Posted by dailydriver
I know you live in a much colder climate than me, but you still feel that the Series 2000 0W-30 is too thin for an LS1 in the winter?? (I have 85K on the engine.)
Anyhow, sorry to get off track.
For the winter, the Amsoil 0w30 would be good since you won't see high oil temps very often, but they recently reformulated it and it's a bit thinner than it used to be. So for summer use their 5w40 is still the better choice, especially if you drive it hard and get the oil temps higher.
