Built LS1 burning oil?
Thread Starter
Teching In
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Built LS1 burning oil? Hey guys i am looking into buying a biult ls1 vette and i was told the motor uses 1 quart of oil every 3,000 miles, is this normal?
also compression on all cilinders is 143-155 is this low?
Thanks guys.
also compression on all cilinders is 143-155 is this low?
Thanks guys.
150 is a bit low I believe, might want to try a leakdown test too see the percentage loss and it will tell you where the compression loss is coming from.
1 qt every 300 miles isnt very bad for ls1's though. See if you can find out if the oil is being sucked through the PCV or is dripping down into the chamber through the head (rocker arm hole, valve seal).
1 qt every 300 miles isnt very bad for ls1's though. See if you can find out if the oil is being sucked through the PCV or is dripping down into the chamber through the head (rocker arm hole, valve seal).
Thread Starter
Teching In
Joined: Mar 2008
Posts: 27
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150 is a bit low I believe, might want to try a leakdown test too see the percentage loss and it will tell you where the compression loss is coming from.
1 qt every 300 miles isnt very bad for ls1's though. See if you can find out if the oil is being sucked through the PCV or is dripping down into the chamber through the head (rocker arm hole, valve seal).
1 qt every 300 miles isnt very bad for ls1's though. See if you can find out if the oil is being sucked through the PCV or is dripping down into the chamber through the head (rocker arm hole, valve seal).
i will ask where exactly the ail is going.
Thread Starter
Teching In
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GM says a quart every thousand miles I believe is acceptable for warranty purposes. When I read this I couldn't believe that much oil use was "acceptable" I bought my 99 Z71 in 02 with 78K and it used a quart every 1500-2000 miles. It now has 176K and still uses a quart every 1500-2000 miles. Pull the plugs and read them and check for wet tailpipes. If it doesn't have the updated PCV valve that can cause oil burning isses too.
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Verdad Gallardo Thread Starter
Teching In
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Hey guys, i might treade my 03 cobra with 20k in mods for this, what do you guys think?
http://pages.villagephotos.com/page.asp?page_id=4051
http://pages.villagephotos.com/page.asp?page_id=4051
