Synthetic oil

Thanks, it's one of my animals, took to the Vet today, Will know more Monday.

Scrub - I wouldn't be shy using 15w-40, in cooler weather it's only 15 w.
 
While we're on the subject of oil, my avatar is a picture of an Onan 14 hp horizontal shaft with right at 600 hours on it. That was the second time I had it apart for the same reason, which you can see at the bottom of the sreen, is a gasket sucked in in the exact same place that it happened before. The engine now has 1100 hours on it.

My "fix" to keep it from sucking that gasket in was to clean the foam wrapper on the air cleaner every 10 hours as recommended by Cub Cadet, not every 50 hours as recommended by Onan.

This repair is described in a post in the Cub Cadet section a few years back.
 
Wow, that's interesting! What's the engine used on if you don't mind me asking?
The Kawasaki FE290 engines had that problem of sucking in the gasket, they just remade the gasket wider in The problem area and that fixed it.
 
tom3 said:
Look on any oil you're buying for the API spec in the little circle sunburst deal. If it's SM it has reduced anti wear additives, if it's SN or SN+ (plus) it has almost none of the barrier lube additives the older and air cooled motors need to survive. If it is not listed I'd keep looking for something else.
Click to expand...

I went to O'reilly's yesterday and could not find one brand with SM on the bottle.
 
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