Synthetic is a little more expensive, but when compared to the cost of major repairs to your engine, it’s dirt cheap, really. Got a question about cars? Write to Ray in care of King Features, 628 ...

There’s more to it than just synthetic and conventional motor oil.

“Conventional means the engine oil uses only standard mineral-type base oils, whereas synthetic blend oil uses combinations ... no doubt synthetic oils make a better product,” says Granger.

Synthetic oil flows better in cold weather ... The system is setting the blend door calibration. If one of the doors is ...