Feeling quite lazy this winter, I put the car in for an oil change. For some reason the garage has charged me for fully synthetic oil, which I don't mind because I know it keeps it's properties for longer therefore can go longer between oil changes.
However, is there any test I can do to make sure the oil which is in the engine IS fully synthetic and they haven't just charged me for full and put part synthetic in?
I don't want to run the car more than 5k miles between it's next change if it is only part.
Cheers,
J.
However, is there any test I can do to make sure the oil which is in the engine IS fully synthetic and they haven't just charged me for full and put part synthetic in?
I don't want to run the car more than 5k miles between it's next change if it is only part.
Cheers,
J.