I think you get what you pay for, I only use KLOTZ in all of my 2strokers, chainsaw, outboards, weedwacker, and sled, been using since mid 80's. Only problem is the cost. Oh ya, your buddies behide you love the smell. My dealer says it may be one of the better oils to use if you have power valves.
W.F.O.
p.s. NO i'm not a salesman for KLOTZ, I just like the product, and clean sparkplugs.