Snowbird
LIFE MEMBER
I have religiously changed oil at 5000 miles or 10000 kms, but am thinking that with the new to me fully synthetic oils am being a bit over zealous. Having read up a little on these synthetic oils everyone says that oil changes can be extended. What do the funsters think. I was always taught that regular oil changes were the best way to extend an engines life, but that was in the days of mineral oils. I have been using Lucas oils for some time now and it does have some good reports, although I have found that in older engines it does need topping up occasionally. Maybe because its thinner.