Haven’t got to use it in my open motor yet but back in the day i ran it in my limited modified flat head Briggs worked great.

Great product

If you're wondering, this Smokeless oil works!!!! NO SMOKE!!!!!

I bought my 2008 Dodge Dakota brand new, I've always changed the oil timely, but lately, only occasionally, smoking a bit -- anyway, the first smog test place guy told me my engine is "worn out", I bought your smokeless oil, and behold no smoke of any kind, this past Saturday I went to another smog testing place, truck passed with flying colors!

Greatest...