ZR-1 Net Registry Forums - View Single Post - Interesting oil test write-up

Dynomite · 03-17-2013

I know I am probably smoking dope (as many think) but I have to say this in regard to all the recent technical dialogues on Oils (engine and transmission) and Coolants. Lots of great reading for sure and that dialogue is appreciated.

SO.......here goes.
I have a 1985 Toyota 4x4 with 275,000 miles that runs like new with no real engine issues (I did replace timing chain and heads at one time) for which I have always used Penzoil 10W 30.

The BIG secret on engine and transmission life is frequent oil and filter changes (on that Toyota I changed oil and filter every 2,000 miles). Same on Transmission oil (much longer oil change intervals) which for the ZF S6-40 the ZFdoc recommends oil changes every 10,000 miles. Using synthetic oils I go about twice as long on oil changes.

So as you can see.....I enjoy the discussions but stick to basics and just keep on running with these fluids LT5/ZR-1 Fluids

Ya...I maybe pay a bit more but then getting 275,000 miles on a single engine is saving a whole lot more.

03-17-2013	#4
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,815	Re: Interesting oil test write-up I know I am probably smoking dope (as many think) but I have to say this in regard to all the recent technical dialogues on Oils (engine and transmission) and Coolants. Lots of great reading for sure and that dialogue is appreciated. SO.......here goes. I have a 1985 Toyota 4x4 with 275,000 miles that runs like new with no real engine issues (I did replace timing chain and heads at one time) for which I have always used Penzoil 10W 30. The BIG secret on engine and transmission life is frequent oil and filter changes (on that Toyota I changed oil and filter every 2,000 miles). Same on Transmission oil (much longer oil change intervals) which for the ZF S6-40 the ZFdoc recommends oil changes every 10,000 miles. Using synthetic oils I go about twice as long on oil changes. So as you can see.....I enjoy the discussions but stick to basics and just keep on running with these fluids LT5/ZR-1 Fluids Ya...I maybe pay a bit more but then getting 275,000 miles on a single engine is saving a whole lot more. __________________ Clickable links On Iphone Touchable Links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 03-17-2013 at 09:22 PM.