Hi All
I was just wondering on people opinions of Castrol Oil? I know there are some opinions that Magnatec does not run well in williams/valvers but wondered if people had any experience with their fully synthetic oil range? Am I right in saying the Magnatec range is all semi-synthetic? The other thing was do people think 5w 30 is right for running in the willy/valvers. Would appreciate some opinions as have never used castrol oils before. currently using millers but found place that will do oil change for just over £30 using castrol fully synth and new filter.
regards
James