Use what the factory recommends.. I have been using chevron 10-30 in my 93 chevy and have done regular oil changes and now have 289k and have not touched the motor. It runs like a champ and uses no oil and no smoke. I think I may have another 100 k in it. I used to tow a 35 ft travel trailer and 19 ft off shore boat. Made a few trips to Thasis bc on vancover island. 20+ percent grade on gravel so that old truck has had a workout...
Filters....A C. Filters used to be made by wix haven't used then for years tho. Anything from napa gold or any auto parts premium filter will most likly be made by wix.. Just look at the fine print..
Stay away from anything like fram puerlator ect you get for cheap. Ask at napa about cutting filters apart.
Key to long engine life is good oil/ filter and reg oil changes and don't get it hot..
