Somehow I ended up with a few quarts of 20W-50 NAPA motorcycle oil even though I don't own a motorcycle? Is there any reason I shouldn't use it in my Briggs & Stratton two cylinder mowers? My instincts tell me it would be fine.
What does your Briggs engine manual say on oil?
That would be a good oil for your lawnmower.Somehow I ended up with a few quarts of 20W-50 NAPA motorcycle oil even though I don't own a motorcycle? Is there any reason I shouldn't use it in my Briggs & Stratton two cylinder mowers? My instincts tell me it would be fine.
Send you personal info to the engineers that built the engine. Tell this it's brand new all over again.View attachment 279382
It says this, but I’ve used 15w-40 in one of them for several years and it seems to do fine. When I replaced the crankcase gasket the internals all looked brand new.
Sure, why not?Send you personal info to the engineers that built the engine. Tell this it's brand new all over again.
I’ve read your comments in the other thread so I’m just gonna go ahead and ignore anything you have to say about motor oil.Send you personal info to the engineers that built the engine. Tell this it's brand new all over again.
Somehow I ended up with a few quarts of 20W-50 NAPA motorcycle oil even though I don't own a motorcycle? Is there any reason I shouldn't use it in my Briggs & Stratton two cylinder mowers? My instincts tell me it would be fine.
ND oils lack pretty much everything an internal combustion engine needs. Some ancient splash lube engines called for non-detergent but that was back when ND oils were made with anti-wear, anti-rust, etc. Modern splash lube engines work just fine with modern detergent oils. Keep in mind, I've ran old splash lube mowers on cooking oil for YEARS as an experiment.A jump-in question. if I may? I may be expunging a life-long misconception.
All the mower/lawn tractor oils which come up here are detergent oils, yes?
I've been using non-detergent 30W in my mower for a long time.
Have I been wrong this whole time? I have always changed it out in a timely manner.
Yes, Temperature dependent. On a warm day no problem. You may notice it on a cold day.Use the 20W-50.
The pull start will be a little harder to pull than 5W-30 or 10W-30, but it should run fine.
It’s an electric start, and on a cold day I won’t be mowing.Yes, Temperature dependent. On a warm day no problem. You may notice it on a cold day.