I stick to Castrol! During summer and winter I usually use different grades of oil. Thicker in winter so it's harder to freeze and easy on the engine during really cold start ups... and regular manufacture recommended grade of oil for summer.
I thought it was the other way around?I stick to Castrol! During summer and winter I usually use different grades of oil. Thicker in winter so it's harder to freeze and easy on the engine during really cold start ups... and regular manufacture recommended grade of oil for summer.