15W-50 THAT's It...I've had it!!!!
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Joined: Sep 2004
Posts: 867
From: Felton, Delaware
Re: 15W-50 THAT's It...I've had it!!!!
Pfft GM doesnt know anything. That's why i removed my front bumepr support and cut out the front bumper to be one big opening so it would cool better straight to the radiator. That's also why my front bumper crushed inward around 130mph and my car started overheating. GM engineers designed things a certain way. I use 5w30 castrol syntec. It's pretty dirty after i change it, but i have never lost a drop of oil so long as i have owned my car. If you have used 5w30 all your cars life, it will keep your engine cleaner and minimize the wear the most of any other oil becuase that's the weight the engine was designed for. The engine is tuned for 5w30. If you needed a heavier oil, you would be losing some oil from it burning up from running those high rpms and high temperatures.
Registered User
Joined: Sep 2003
Posts: 5,907
From: The Wild West
Re: 15W-50 THAT's It...I've had it!!!!
The oil analysis is from Blackhawk Labs. You mail in a sample of your oil and the analyize it and send you back the results. Its been a while since I read the article that came from blackhawk but they tell you things about your car that could be wrong internally, etc.
-Dustin-
-Dustin-
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Advanced Member
Joined: Nov 2003
Posts: 3,874
From: Under The Hood
Re: 15W-50 THAT's It...I've had it!!!!
lol's this is so old... I remember writing this post and everyone yelling at me...
any how I started using 15W-50 at 36K on my car.... today she has 80K...and runs rather nicely.
no harm no foul...
any how I started using 15W-50 at 36K on my car.... today she has 80K...and runs rather nicely.
no harm no foul...
Registered User
Joined: May 2001
Posts: 546
From: in my skin, ben!
Re: 15W-50 THAT's It...I've had it!!!!
Originally Posted by BUBBA
I run 100% Extra Lite Virgin Olive Oil. It helps prevent build up of plaque which in turn can cause pre mature engine failure.
I got a good deal on it and the guy who sold it to me out of the trunck of his Lt1 assured me it was the only stuff he ever used. That's why he carried so many cases of the stuff around with him (just to make sure he had plenty on hand).
He also had some computers in there too, so I know this guy was really smart.
I got a good deal on it and the guy who sold it to me out of the trunck of his Lt1 assured me it was the only stuff he ever used. That's why he carried so many cases of the stuff around with him (just to make sure he had plenty on hand).
He also had some computers in there too, so I know this guy was really smart.
Registered User
Joined: Dec 2002
Posts: 690
From: Denton, TX
Re: 15W-50 THAT's It...I've had it!!!!
Originally Posted by Vader
Many NASCAR teams run 5W-30 or even 5W-20 (the new viscosity established under ILSAC for many new engines) in their engines turning 8000 RPM and making hundreds more horsepower than we can dream of in our LT-1s. Their reasons are less parasitic drag, better flow, more horsepower. And all of it based on the science of hydrodynamics, which accurately describes the process of lubrication in a bearing, which is far more complex than "pressure" or "thickness" arguments, which are far too simplistic.
So much for the thicker is better argument. If you had a clapped out British sportscar from the 60's, thicker is better. Not today.
I love anecdotal information presented as fact. It is so easy to disprove, and the logic so childlike.....
So much for the thicker is better argument. If you had a clapped out British sportscar from the 60's, thicker is better. Not today.
I love anecdotal information presented as fact. It is so easy to disprove, and the logic so childlike.....
Last edited by 93turbo5oh; Apr 14, 2005 at 06:45 PM.
Registered User
Joined: Sep 2004
Posts: 867
From: Felton, Delaware
Re: 15W-50 THAT's It...I've had it!!!!
Red Line doesnt weigh the same though. Red line is RATED at those weights. Red line is a very thin oil. It's temperature tollerences and such that make redline so good. Their 90w gear oil is rated at like 250w as far as temperature and librication.
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