When my Grand Cherokee hit the 108,000 mile mark in 2011, I had a whole "recommended maintenance" series completed at a Jeep dealership. This included new spark plugs, front and rear differential service, transfer case service, transmission service, fuel saver service, and coolant flush service.
Skip to today--it's 2013 and and I hit the 133,000 mile mark. I went to another Jeep dealership for an oil change, and they say they see no records of the work I had done in 2011. They say I need almost ALL of the same services done again.
How often should those services really be completed?