Originally Posted by MJC
I would say the oil you are using is a little thin for the CVH engine. I currently use Silkolene 10W 50 in mine
Agreed. I use this oil and this grade. 5w is a bit thin in my opinion.
I also use standard Ford RST plugs and might aswell get the oil filter from there too while you are at it. Which is exactly what I going to buy today.