Plymouth Valiant
Monday, June 27th, 2011Plymouth Valiant
I have a 1970 plymouth valiant, given the age of what weight oil should I use?
I have been using 40 10W, but have been told I may want to use something heavier. What do you think? PS has some leakage of heavy oil and I was told would help until I get the gasket fixed, but I do not want to do something that might be bad for the engine.
It will still leak even when using 20w50, but may slow down a little leakage. Just do not expect a lot. Chances are, it will not hurt the engine unless you are experiencing extremely cold weather this time of year, then there is likely to be. If it was mine, and I want to use more oil thick, I would probably use 15w40 instead of 20w50. But in reality, I might just live with the leak until I had them fixed. You can keep the oil from the ground by placing a large piece of cardboard on the floor where you parked the car and let it leak on the cardboard (or other material that would still get on the floor, like an old shirt, old worn blankets, etc.).
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