427435
Rochester, Mn
Senior Member
Joined: 11/12/2005
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Grillmeister,
I'm using the 15w-50 in my genset(3 years) as well as my commercial air-cooled lawn mower (15+ years). No problems, but I don't start either when it's below freezing.
Mark
2000 Itasca Suncruiser 35U on a Ford chassis
2003 Ford Explorer toad with US Gear brakes,
ReadyBrute tow bar, and Demco base plate.
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pnichols
Santa Cruz Mountains
Senior Member
Joined: 04/26/2005
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The Mobil 1 Extended Performance that I use in my Onan 4KW is 15W-50W.
The "50W" part of this range is because we want ultimate reliability when it's most critical that our Onan not let us down - in extreme heat out in the middle of nowhere when absolutely needing to run the RV's air conditioner.
Phil, 2005 E450 Itasca 324V Spirit
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Grillmeister
Iconoclast
Senior Member
Joined: 07/16/2003
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Thanks guys, I will give it a try and see if I notice any difference.
Show me the GRILL and STAND BACK!!!! 
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smkettner
Southern California
Senior Member
Joined: 03/21/2005
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I put Valvoline synthetic in my Kipor from day one.
Watch the weight though. My Kipor says 10w30 but inside the manual it says 10w30 is good only to about 85F ambient temperatures. Needs the last numbers to be 40 or 50 to protect in 85+ temps. I use 20w50.
2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
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Mousefart
New Jersey
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Joined: 08/15/2004
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The inportant this is dino or synthetic, use the SAME weight that the manufacturer calls for. Just becuase it is synthetic, doesn't mean you can use a lighter or heavier oil. If your genny calls for 10W-30, then use 10W-30 synthetic, nothing else.
Paul (Mouse)
2007 Flagstaff Shamrock 17 Hybrid (heavily modified for boondocking and winter camping).
2007 Dodge Dakota Quad Cab 4x4, 4.7L HO, factory tow, 3.92 gears.
Equil-i-zer Hitch, Prodigy.
Yamaha EF2400 Generator (quiet, cause I care!)
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DaCarmack
Murrieta ca
Full Member
Joined: 06/09/2005
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I use Mobil 1 15w-50 in my Yamaha EF2800i and my BGE 4.0KW onan
They seem to like it just fine
DaCarmack
1985 22ft Lazy Daze
Gear Vendors 40in duel Thrush Glasspacks
2005 Honda TRX 400 ATV
1983 Honda 185s ATC
2004 Saturn Ion Redline (can you say sleeper)
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