2011 F350 95k miles, 6.7 Supecrew, single axle

Question

Limited service history, so planning on changing engine oil and filter, fuel filters, serpentine belt and maybe the air filter. 90k service recommends coolant flush, change trans oil and filter and change rear differential fluid. Local knowledge suggests leaving the transmission and differential alone as long as no leaks. Ten year old truck-long time for fluids...….
What about hoses and other soft stuff?

lwiddis · Answer

“Local knowledge suggests leaving the transmission and differential alone as long as no leaks.”IMO local “loco” knowledge.

agesilaus · Answer

Differential and Transfer case oil should be changed, radiator probably flushed, maybe transmission flushed and new fluid. Fuel Filters too. I have a 2012 and I'm going thru this maintenance this year.

If that's a 2011 6.7 it is actually a 2011.5 which was the initial appearance for the 6.7.

lynnmor · Answer

agesilaus wrote:If that's a 2011 6.7 it is actually a 2011.5 which was the initial appearance for the 6.7.The 2011 model year, which started in 2010 as is the custom in the auto industry, was the first for the 6.7.

fishonone · Answer

I have a '12 6.7 with ~185k miles and I just recently changed the plastic IAC tube since they're a know failure point.  Hoses don't need to be changed IMO.  Also I would change the transmission and transfer case oil just so you know it was done.  Rear differential could go longer if the fluid level it ok.

benk · Answer

Add : Serpentine belt tensioner, power steering fluid, brake fluid, if it has TMS...change the batteries, diff fluid as a min

Synthetic everything

Coolant might be ok for a few more thousand, but while at it...why not

Lube/grease all joints with Stalube moly rich

303 all door seals and tires

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2011 F350 95k miles, 6.7 Supecrew, single axle

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