All ActivityMost RecentMost LikesSolutionsRe: rpmThank you. I'm at about 800 now.rpmWhat is the proper rpm for a cummins 400 isl in neutral?Tire PresureI need the tire pressure for 8 yokohama motorhome tires. They put 110 psi in the front, 90 in the duels and 80 in the tag. Any tips? Thanks in advance. Oh, tire size is 295/80r
