JB4310
Super Member
2 quarts down in 140 hours - yikes!. I am not familiar with the generator, although I thought most of the bigger units were 1800 rpm. Is it a water cooled 1800 rpm unit or an or an air cooled 3600 rpm unit?
We were on generator 5 days last week and 5 days during Irene (same oil fill) and oil level never changed. Onan 7.5 kw generator turned by Kubota 3 cylinder diesel running 1800 rpm. Most of our load was pretty low (lights) unless the well pump or oven was on. I was using Mobil 1 10w30. Just switched to Mobil 1 5w40 but haven't run enough to see if there is any difference in use.
That's quite the power-plant for such modest KW output, but that is my dream generator, 4 pole, 1800 rpm, diesel powered, liquid cooled, maybe 12-15 KW. That configuration should be the longest lasting most maintenance free set up.
Ain't gonna be any oil consumption there. and you aren't gonna be changing the oil every 24 hours like the whiz bangers.
Why change the oil viscosity? is it still within the manufactures recommendation?
Regarding OP question, Does LP combustion lend itself to greater oil consumption for any reason, run hotter or any other draw backs???
JB