May be of interest to Mobil 1 users.

[Ccmano]

Funny.. here’s a link to a thread I posted on the subject back in 09’. It contains Hibs excellent article on the subject. It concludes that 800 ppm zddp is the minimum requirement for our engine. It also appears I was advocating Amsoil at the time...lol. (or any oil with 800ppm or more).

http://www.zr1.net/forum/showthread....mshaft+failure

To me, at least, the bottom line is we should all use what we are comfortable with. To some that’s the extra protection of Amsoil, others Mobile 1 with or without an addative, I’m sure there are many other options. Ultimately there is no one answer.

Good discussion though...
H

[-=Jeff=-]

So if amsoil amo is 1400 zddp. I wonder if you could blend it with another oil to bring it down to 1000. This would help those with converters still on their car


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[XfireZ51]

Originally Posted by Ccmano

Funny.. here’s a link to a thread I posted on the subject back in 09’. It contains Hibs excellent article on the subject. It concludes that 800 ppm zddp is the minimum requirement for our engine. It also appears I was advocating Amsoil at the time...lol. (or any oil with 800ppm or more).

http://www.zr1.net/forum/showthread....mshaft+failure

To me, at least, the bottom line is we should all use what we are comfortable with. To some that’s the extra protection of Amsoil, others Mobile 1 with or without an addative, I’m sure there are many other options. Ultimately there is no one answer.

Good discussion though...
H

Sounds like Hib’s article would find Mobil 1 High Mileage to have an acceptable level of ZDDP.
I didn’t get the impression that Cliff’s link did much to indicate that lack of ZDDP was the cause of lobe wear. And didn’t Marc write that he went ahead and continued to use that cam w/o further issue?

[Dynomite]

Originally Posted by Ccmano

To me, at least, the bottom line is we should all use what we are comfortable with. To some that’s the extra protection of Amsoil, others Mobile 1 with or without an addative, I’m sure there are many other options. Ultimately there is no one answer.

Good discussion though...
H

Of all the contributors to this thread and of those who read this thread I would bet only a small handful will ever look at their camshafts

Camshaft and lifter failures are like Timing Chain failures......those failures are very very rare and the reasons for the failures are difficult to diagnose.

The LT5 is very very reliable engine and easy to get 100,000 miles or even 200,000 miles on an engine. The Chain guides some times DO wear out and break but even that is rare. Often these failures may be lubrication related.

[Ccmano]

Originally Posted by Dynomite

Of all the contributors to this thread and of those who read this thread I would bet only a small handful will ever look at their camshafts

Agreed! Or at least not till that ticking sound starts...lol
Happy Holidays
H

[Dynomite]

Originally Posted by Ccmano

Agreed! Or at least not till that ticking sound starts...lol
Happy Holidays
H

Merry Christmas