I decided to try a dino high mileage oil to slow the leaks on my Jeep's 318. At Walmart I grabbed a jug of Quaker State Higher Mileage oil, since it was only about $15 for a 5qt jug. I looked for the API grade on the back, but on the label there was no API donut. The single quart jug had a white paper sticker that said "Suitable for use where API SM, SL and SJ is recommended" - reference link:
http://www.quakerstate.com/#/motor-oil/higher-mileage-engine
What's up with that? I put it back and bought some Pennzoil High Mileage 10w30.
http://www.quakerstate.com/#/motor-oil/higher-mileage-engine
What's up with that? I put it back and bought some Pennzoil High Mileage 10w30.