02-22-2014, 08:50 AM
When we first got ours, we ran Rotella 15w40. Had no trouble with it. Then discovered 40w was recommended. The oil change service I use got a drum of Mobil 1240 in for me. (We change 3-4 times a year depending on use. every 5k to 7.5K). Still using Rotella in the generator though. So far I like the performance of the 40w much better than the multi-grade.
When we first got ours, we ran Rotella 15w40. Had no trouble with it. Then discovered 40w was recommended. The oil change service I use got a drum of Mobil 1240 in for me. (We change 3-4 times a year depending on use. every 5k to 7.5K). Still using Rotella in the generator though. So far I like the performance of the 40w much better than the multi-grade. 8v92 here.
When we first got ours, we ran Rotella 15w40. Had no trouble with it. Then discovered 40w was recommended. The oil change service I use got a drum of Mobil 1240 in for me. (We change 3-4 times a year depending on use. every 5k to 7.5K). Still using Rotella in the generator though. So far I like the performance of the 40w much better than the multi-grade. 8v92 here.