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Which Oil?

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Simplicity_728
the temp is between 32-60 degrees which oil would anyone recomend? the engine sticker says below 40 5w-20 and above 40 straight 30 (briggs mod- 191700 type - 0638-01 has been shortblocked with 8hp I/C shortblock) thanks

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steve-wis
I run 10w-30 year round here in wisconsin, from 90's in summer to around -15 or -20 sometimes in winter. Tractor is in unheated attached garage which stays about 6-8 degrees warmer than outside. Never had a problem. Steve

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427435
Dino multi-viscosity oils will shear down with use. That is, a 10w-30 will become a 10w-25 or maybe a 10w-20 with use. Air-cooled engines may run warm (plugged cooling fins) and a thin oil could be a problem------so a straight weight 30 oil is often recommended as it won't shear down. I've been using Mobil 1 15w-50 in my air cooled engines for years. The synthetic oils aren't subject to shear down. The 15w-50 is light enough that they start well in my un-heated garage in the winter and plenty heavy for hard, summer use.

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Simplicity_728
thank you for the responses. Steve i put 10w-30 in it this afternoon (60 degrees, western WI) and i mulched leaves for 1 1/2 hours with no oil comsumption. Now im just trying to find a plow or blower to go on it before winter. Or i could always make a plow sm06

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Oil Recommendations To optimize engine performance, (Disclaimer)(use Warranty Certified Briggs & Stratton Small Engine Oil). Briggs & Stratton offers a Synthetic 5W-30 oil that provides the best protection at all temperatures as well as improved starting with less oil consumption. For optimum performance, you should change the oil in your small engine after the first five hours of use and then annually, or every 50 hours of use (whichever comes first). Use Briggs & Stratton SAE 30W Oil above 40°F (4°C) for all of our engines. Check oil level regularly. Air-cooled engines burn about an ounce of oil per cylinder, per hour. Fill to mark on dipstick. DO NOT OVERFILL.


Oil Recommendation SAE 30 40°F and higher (5°C and higher) is good for all purpose use above 40°F, use below 40°F will cause hard starting. 10W-30 0 to 100 °F (-18 to 38 °C) is better for varying temperature conditions. This grade of oil improves cold weather starting, but may increase oil consumption at 80°F(27°C) or higher. Synthetic 5W-30 -20 to 120 °F (-30 to 40 °C) provides the best protection at all temperatures as well as improved starting with less oil consumption. 5W-30 40 °F and below (5 °C and below) is recommended for winter use, and works best in cold conditions. Type of oil to use Use a high quality detergent oil classified "For Service SF, SG, SH, SJ" or higher. Do not use special additives. Choose a viscosity according to the table above.


REGARDLESS OF OIL BRAND ALWAYS READ THE DONUT !

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