Hey fellas, I drive a 2001 Cadillac Catera (German Built) with a european spec L81 engine, fairly high compression.
Factory Spec oil 10W-30 Summer, and 5W-30 Winter.
Purchased the car at 60K, and switched to M1 following the factory specs for viscosity, then 15-20k later I started noticing puff of blue smoke on cold start ups.
Since then I have tried a few different oil seal additives but nothing seems to help. Tried Lucas and Barhdal... < both of which didnt seem to help the smoke. It did however improve the oil consumption a bit and also the power of the engine. Mind you the car dynoed at 195RWHP when its rated 200 factory... that was with Lucas and 5W-30 M1.
It has just passed the 141,XXX mark and I was wondering what to do with my oil problem.
Its apparent that oil leaks from the intake/exhaust valve seals into the combustion chamber and as a result it burns off when the engine is started on cold days.
My 1 option is to use mineral or semi-synthetic oils or should I switch to a fully synthetic oil.
Lately its been running with 5Qts. Valvoline Max Life and 1qt Lucas...
^ Thanks to this forum I am no longer a fan of Lucas and I plan on dumping the current oil fill for a new one but I hope that someone can guide me in the right direction.
What about Rotella? M1? and should I go 15W-40 to slow down some of that leak?
Factory Spec oil 10W-30 Summer, and 5W-30 Winter.
Purchased the car at 60K, and switched to M1 following the factory specs for viscosity, then 15-20k later I started noticing puff of blue smoke on cold start ups.
Since then I have tried a few different oil seal additives but nothing seems to help. Tried Lucas and Barhdal... < both of which didnt seem to help the smoke. It did however improve the oil consumption a bit and also the power of the engine. Mind you the car dynoed at 195RWHP when its rated 200 factory... that was with Lucas and 5W-30 M1.
It has just passed the 141,XXX mark and I was wondering what to do with my oil problem.
Its apparent that oil leaks from the intake/exhaust valve seals into the combustion chamber and as a result it burns off when the engine is started on cold days.
My 1 option is to use mineral or semi-synthetic oils or should I switch to a fully synthetic oil.
Lately its been running with 5Qts. Valvoline Max Life and 1qt Lucas...
^ Thanks to this forum I am no longer a fan of Lucas and I plan on dumping the current oil fill for a new one but I hope that someone can guide me in the right direction.
What about Rotella? M1? and should I go 15W-40 to slow down some of that leak?