The best you can do for them engines if they are in good shape and not leaking too much oil is to run 5W-30 Synthetic oil in them year round, unless you live in a really hot climate use a heavier Synthetic.Maybe this question have been asked, but if not, I ask it now. What is simply the best engine oil brand to use on:
Or any other engines powering the EEK cars.
And should we use Lucas additives (Me, I say a big NO!!! But if anybody have something to say about them, please say it)
The oil for winter should normally be 5W30 (unless you live in southern USA), but how about using it in summer? Any comments on this?