8hp generator oil?

[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?

[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.

[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.

[D-17_Dave]

With the cold weather I'd go with 5W-30 or synthetic.

[dorise]

I have a 10HP Tecumseh on a Coleman generator and the manual recomendations are the same as "sandyhillbill" gave for his leaf collector.

[toad270]

Bruker where do you live in mercer county I live in Celina

[WITom]

10W-30 Mobil 1. Can't go wrong with that. Tom