Moblie one causing engine failures?
I was told that the only LS1's that failed were filled with Mobile 1. No LS1 that was fitted with mineral oil had been damaged. Pretty damning evidence - if the dealer can be believed. Out of 14 such cars in my area, mine was number 6 to let go - nearly 50% failure rate - more have probably failed since. These engines redline at 6,500.
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The really anoying thing is I took the car back to the dealer about 3 weeks before the engine died and complained that the lifters were noisy and the oil pressure was low. Even knowing that 5 vehicles had also failed with oil problems only days before they just topped it up with 2 litres of oil and told me to tell the service guys at 10,000 service that it was using oil. Three weeks later the engine was dead. <img src="gr_images/icons/mad.gif" border="0">
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EFILive, your issue sounds like an oil pump problem. Pretty typical. the relief valve will stick opne. Search the boards and you'll find many similar failures.
And i highly doubt the oil type impacts the pump failure, as it happens on all LS1's synth or dino alike.
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About the oil pump being the cause of failure - I agree 100%, so do most people who work on these engines.
I was just illustrating a point:
*** that the dealers (aka GM-H) were trying to shift the blame to synth oil. ***
Just relaying what I (and undoubtably every owner whose engine failed) was "told".
I got a little carried away - I fought the dealer and GM-H for about 6 months to get the issue resolved - but the dealer would not play ball, I came off second best. I am just a little annoyed about the whole issue.
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They also tried to blame the oil consumption earlier that year on using synthetic oil. I told 'em that was a load of bunk since the C5s came with it. Their response? "Oh, well the C5 motor has different parts, tolerances, etc. The build them to different specs than the Camaro version." <img src="graemlins/gr_guns.gif" border="0" alt="[guns]" />
<strong>Also said even if the cam didn't cause it, the catback could have made the engine run lean, hammer the bearings and clog the pump with debris. <img src="images/icons/rolleyes.gif" border="0">
They also tried to blame the oil consumption earlier that year on using synthetic oil. I told 'em that was a load of bunk since the C5s came with it. Their response? "Oh, well the C5 motor has different parts, tolerances, etc. The build them to different specs than the Camaro version." <img src="graemlins/gr_guns.gif" border="0" alt="[guns]" /> </strong><hr></blockquote>
Jake, you never mentioned this to me before. What a crock! I would have **** myself with rage and disgust <img src="gr_images/icons/mad.gif" border="0"> right in front of them had they said either of these two statements to me. Who the hell was this, Woodfield? God, what a load! C5 and F-bod LS1 have different engine tolerances” <img src="graemlins/gr_bs.gif" border="0" alt="[bullshit]" /> <img src="images/icons/rolleyes.gif" border="0"> I got their tolerances right here! Never go anywhere but Jennings around here...






