Man I did like three days of reading posts and outside links to decide what oil to put on my 98 Contour V6 with 100k miles.
I finnaly decided 10W30 dino oil but down here we never get below 15°C.
Check this link that will explain what the numbers are:
What Oil? 5W20 is Ok for Winter temps. It is thinner at higher temps than 5W30, but don't know if TOO MUCH thinner when summer comes. Maybe another CEG'er will answer that part. How many miles/km?
