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Bruker

8hp generator oil?

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Bruker
I have a Coleman generator with an 8hp Tecumseh engine on it. With the ice storm we had last week here in Ohio it's seen a lot of use powering sump pumps and furnaces. It's been working great but we have had to add a little oil now and then. As soon as I get a chance I'm going to change the spark plug and oil. I don't have the owners manual so I'm wondering what would be the best oil to put in it. Would a multi-grade like 15w-40 or 20w-50 be good or would a single weight 30w or 40w be better?

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sandyhillbill
I have a 6hp Tecumseh on a leaf collector and the owners manual says above 32 degrees F use SAE 30W, 0 degrees F - 32 degrees F use SAE 5W30 or 10W and below 0 degrees F use SAE 0W30 --down here in Louisiana I don't need to worry about those last two.

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Mick14
I have been using synthetic oil since i have read several posts by MPH,costs a little more but works a lot better in the cold,i use a 10-30 wt. in a couple of engines-all old-and sofar easier starts . straight 30 wt. isn't available around here in a synthetic,so i use 20-50 in my tractor in the summer,and that saw a lot of use last year.

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