We know switching to a full syn in an older vehicle can unveil leaky gaskets that were dammed up with sludge prior, and that the hydrocracked/synthetic molecules are smaller than in conventionals which also adds fuel to the fire.
My question is, will a syn blend cause this too? I'm considering switching to GTX SynBlend in an oil burner 1ZZ Corolla to slow the burning a bit. I have tried M1 in it in the past and had horrible results and do not want to go the full syn route again. Considering GTX SynBlend is probably only about 30% syn or so, could is possibly cause leaking? Car currently does not leak.
Castrol's site says, "GTX SynBlend cools critical engine parts providing a superior level of protection against wear and oil burn-off" and also "A higher level of thermal stability vs. conventional oils" and "Maximum viscosity and oil burn-off protection".
My question is, will a syn blend cause this too? I'm considering switching to GTX SynBlend in an oil burner 1ZZ Corolla to slow the burning a bit. I have tried M1 in it in the past and had horrible results and do not want to go the full syn route again. Considering GTX SynBlend is probably only about 30% syn or so, could is possibly cause leaking? Car currently does not leak.
Castrol's site says, "GTX SynBlend cools critical engine parts providing a superior level of protection against wear and oil burn-off" and also "A higher level of thermal stability vs. conventional oils" and "Maximum viscosity and oil burn-off protection".