What are the benefits/risks of using an SL or SM rated straight 30 or 40 weight oil for hot (85°-95°F) summer conditions in a modern gasoline engine?
I'm not really considering this.....it's just one of those what if's??? I've never really seen this discussed on here before.
I'm not really considering this.....it's just one of those what if's??? I've never really seen this discussed on here before.