I have a lawn tractor with a Briggs Stratton air cooled engine that I picked up with engine problems dirt cheap. It was loosing a rod bearing when I checked it out (uses a dipper on the rod for splash oiling). The parts and work needed lead me to purchase a new engine rather than fix the original. I was convinced dry start up helped shorten its life. In Arizona an air cooled engine is under extra stress and shutting it down hotter then heck allows all the
oil to drip dry before the next start up.
I added the correct amount of Lucas to the 13.5 HP air cooled engine to fight dry start up. After 1 or 2 weeks of sitting I can remove the dipstick and it remains coated top to bottom. The engine is hotter than heck after mowing my 1 acre back yard even with a cooling fan I added, it is still well above 90 to a 100 degrees on a summer evening. With
oil alone the dip stick was bone dry above fluid level but adding Lucas it remains coated. You must wipe the dip stick with a cloth to get a reading telling me everything else is coated as well. If nothing else it helps dry start up and is not foamed even with engine running. I like the product !!
I had to pull a case cover to fix a
oil leak and found a big sand casting pit I fixed with JB Weld but it worked. The internals looked great inside with no real wear showing after 4 years of use for about anything you can think of including using it as a tow rig for anything it has the traction to move.