If you do actually use the car a lot when the temperatures are near and below freezing, then that grade would fit the bill. But I guess that you get hot weather in summer, just as we do in Scotland sometimesI live in the US in the northeast where it gets cold in the winters. I am currently using 10W30 oil in my '70 500F. Is this wrong?
If you do actually use the car a lot when the temperatures are near and below freezing, then that grade would fit the bill. But I guess that you get hot weather in summer, just as we do in Scotland sometimesand so the recommended 20W50 would be more appropriate in summer.
I am not an expert but I don't think you would be damaging the engine other than possibly encouraging leakage and burning a bit more oil past the piston rings and valves.