I just got a Class B motorhome on a 2001 Ford E-350 dual rear wheel cutaway chassis with 10,700 lb GVWR and just over 30K miles. Naturally I checked all fluids but the rear axle is supposed to be a lifetime fill according to the manual with 75W140 synthetic hypoid gear oil.
This Motorcraft fluid is over $200 / gal at my Ford dealer!
Motorcraft 75W140 synthetic hypoid gear lube
Not sure if it's a Dana axle. There are no tags and the only stamped codes I can find are: 4.10 VIC24 NA V606605 1
Common sense tells me no rear axle fluid can last indefinitely owing to contamination by metal wear debris and exhaustion of the additive package. I searched this forum but couldn't find any endorsement of the "lifetime fill" recommendation. Am I worrying needlessly?
Oh, if I must change the axle fluid it will be a real pain as there is no drain plug and the rear cover almost butts up against the waste water holding tank.
Cheers,
RR
This Motorcraft fluid is over $200 / gal at my Ford dealer!
Motorcraft 75W140 synthetic hypoid gear lube
Not sure if it's a Dana axle. There are no tags and the only stamped codes I can find are: 4.10 VIC24 NA V606605 1
Common sense tells me no rear axle fluid can last indefinitely owing to contamination by metal wear debris and exhaustion of the additive package. I searched this forum but couldn't find any endorsement of the "lifetime fill" recommendation. Am I worrying needlessly?
Oh, if I must change the axle fluid it will be a real pain as there is no drain plug and the rear cover almost butts up against the waste water holding tank.
Cheers,
RR