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oldcorollas
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Kita-Ku, Sapporo, Japan
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January 2003

Re: Oil viscosities and Consumption

Tue, 09 August 2005 06:53

RAV-GT4 wrote on Tue, 09 August 2005 15:40

When I give my car a bit of boost (say above 7 or 8Psi), it starts chewing through the oil. With the current oil I have (10W/50 Synth), it hardly makes any signs that it's actually burning or consuming oil. Now we're moving out of the cool months and back into slightly warmer weather, I will change my oil for a thicker viscosity (like 10W/30 or something similar). My question is, will a thicker oil viscosity give out any signs that it's being consumed, over a thinner viscosity oil?

The reason why it's being consumed is that the ring gaps/clearances aren't right on the Arias pistons for a 3S-GTE. I'm not the only one with a 3S-GTE and Arias pistons with this problem either. Rolling Eyes

10W30 is thinner Wink

but anyway Razz

could this be related to running too cold? not expansion happening etc? did that get sorted yet?

what were the rings gapped to? the oil control rings should still be controlling the oil...

all oil should give signs of being consumed, but it may only be a hint of smoke that you can only see when following the car, not from in the drivers seat. thicker and thinner should still have similar signs.. they aren't that different really...

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