On Alfa number 15
AO Platinum Member
Join Date: Dec 2005
Location: United Kingdom
Re: Which Oil do YOU use?
If the Fully synthetic oil makes 1mpg difference it will still more than pay for itself over the oil change interval..
It is also safer to leave fully synthetic oil in the engine for slightly longer. I would change a semi synthetic oil every 5000 miles personally, but I would be happy to leave the fully synthetic in for a fair bit longer, possibly 8-9000 miles
I would never leave any oil in for 12k (Miles) though even with Selenia 20k, as I believe this is a big contributing factor to TS engine problems such as variators failing, Cams loosing lobes and crank bearings failing.
Alfa are not well know for having realistic servicing intervals.
You will never be cool driving a Vauxhall.