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Camaro V6 LLT Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 05-17-2013, 09:48 PM   #26
ChadG

 
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Quote:
Originally Posted by strych9 View Post
My Porsche called for 15k oil changes...using good old Mobil One.

I've gone to seminars about motor oil, synthetics, etc. A C5 member (Gunny, I think) did testing and proved that there was no significant degradation or contamination in the oil after 8k miles of use.

Synthetic oil will go the distance with no problem. No OEM is going to make that claim unless it's a fact. They are responsible for the warranty, after all.

All bets are off if you're racing it.
I am not doubting you, but I like the added peace of mind changing every 3k miles even with Mobil 1. These timing chains make me nervous.
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Old 05-18-2013, 07:27 AM   #27
TooCool5
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Quote:
Originally Posted by strych9 View Post
My Porsche called for 15k oil changes...using good old Mobil One.

I've gone to seminars about motor oil, synthetics, etc. A C5 member (Gunny, I think) did testing and proved that there was no significant degradation or contamination in the oil after 8k miles of use.

Synthetic oil will go the distance with no problem. No OEM is going to make that claim unless it's a fact. They are responsible for the warranty, after all.

All bets are off if you're racing it.
The GM engineers changed the oil monitor from 10,000 miles max - to 5,000 miles max interval for a reason.
I expect them to know more about what is going on than any of us, as they do an analysis of field failures.
My guess is there is an oil sludge problem that causes some of the issues.
Maybe a cold spot in the motor? Who knows.
Cheap insurance to go to the shorter interval.
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Old 05-18-2013, 02:27 PM   #28
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I changed my timing chains myself. The engine was clean with 120,000 miles on it. It is my belief that it is to prevent someone from driving with low oil level.
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Old 05-19-2013, 12:34 PM   #29
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I changed my timing chains myself. The engine was clean with 120,000 miles on it. It is my belief that it is to prevent someone from driving with low oil level.
I think the sludge problem happens in Northern states during cold winters.
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Last edited by TooCool5; 05-24-2013 at 10:31 AM.
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Old 05-23-2013, 06:57 PM   #30
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Originally Posted by SC2150 View Post
M1 is not nearly as good as it used to be. For of the shelf oil, Castrol syntec is great, pennzoil/QS as well. For a premium Amsoil, valvoline, etc. I stll cant bring myself to trust RP oil.....no problems with gear lube, etc. but we lost to many engines in the days they were title sponsor of some of the IHRA classes.

The biggest issue is using convemtional or a dexos approvend blend. After breakin, get a good full syn in and never use a conventioanl. It is a sure recipe for failure (I know of no one doing more with the LLT & LFX engines than RX). Any one that should know better and still uses conventional is just asking for failure.

And yes, the new chains are improved, but not by alot. It is also critical that you check oil levels regularly as these do NOT have low oil indicators, so you need to monitor it every few fuel fuel ups.



So Penzoil Platinum has the Dexos logo on it . . . . is there no hope?
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