15w-40

robbiecox6

Member
Joined
Feb 26, 2013
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20
I have a 2008 LA135 with a 22hp b&g engine is it safe to use 15w-40 motor oil or use something else?:newhere:
 
In my opinion NO, use the weight which is recommended in the users manual. Briggs run great on 30W in the summer and 10W-30 in the cold weather.
 
I've use Rotella 15w40 in every engine I've owned for decades... never a problem, never had to rebuild an engine and some are over 30 years old.
 
Your owners manual should recommend 10w-30. I'm just curious, but why would you want to use 15w-40? And one more thing, believe it or not, but I can buy John Deere oil and filters cheaper at my dealer than most brand name car oils and Briggs filters around here.
 
use 30w oil in a side valve B&S engine and 10w30 in a OHV B&S engine.
 
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