Generation III Internal Engine 1997-2006 LS1 | LS6
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Can I go to conventional oil after using Synthetic for 40000 miles?

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Old 04-18-2005, 12:39 AM
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If your burning that much oil but not noticing any fouling or signs of oil burning on the plugs it sounds like the exhaust valve seal is leaking, or if its burning in the combustion chamber I would look into a PVC problem with that much oil consumption.

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Old 04-18-2005, 07:00 AM
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I dunno,It was like this with the stock heads too...
Old 04-18-2005, 01:55 PM
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I think your problem is with the oil scraper ring allowing oil to the top side of the piston. No matter what oil you put in it your going to use oil.
But to answer your original question yes you can switch to regular oil with no problem at all.
Old 04-18-2005, 04:50 PM
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Originally Posted by 2redgmc
I think your problem is with the oil scraper ring allowing oil to the top side of the piston. No matter what oil you put in it your going to use oil.
But to answer your original question yes you can switch to regular oil with no problem at all.
I might aswell go to conventional oil,I mean at an Idle you can smell this thing burning oil
Old 04-18-2005, 04:54 PM
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Originally Posted by Pro Mouse
I might aswell go to conventional oil,I mean at an Idle you can smell this thing burning oil
Try some 15w40 or 20w50 that might slow it down some.
Old 04-18-2005, 05:07 PM
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Yeah maybe I will give it a try.....




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