15w-40

robbiecox6

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Feb 26, 2013
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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:
 

Rivets

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Mar 11, 2012
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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.
 

HarryHarley

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Mar 22, 2012
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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.
 
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I use sae30 weight all year, and never had any trouble
 

mullins87

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Oct 24, 2010
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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.
 

066

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Oct 18, 2012
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use 30w oil in a side valve B&S engine and 10w30 in a OHV B&S engine.
 
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