From Conventional to Synthetic..

[Sammich]

okie doke...thats what i needed to know..thanks..i thought it was too late to start synthetic

[DirtyMechanic]

okie doke...thats what i needed to know..thanks..i thought it was too late to start synthetic

yup i found that on VQ's must start way early and keep it up or else youll start to burn.... like below 20k early

[Kaiser]

yup i found that on VQ's must start way early and keep it up or else youll start to burn.... like below 20k early

I trust your experience, but I'm wanting for a factual explanation as to why this happens. Most other cars have no issues switching back and forth, as long as the lubrication requirements are met and you're using high quality, proper viscosity oil, there should not be oil burnoff.