[neo85]

Same exact issue at my Chevy dealership today they had some bs maintenance sheet with major maint at every 15k and 30k miles for all vehicles. I showed the factory maint that only required these services at 45k and they instantly shut up and said you just want the oil change then? Lol sad when ppl end up falling for it=\

[Rock-It Man]

Just follow the owners manual (OM).

Dealers are always trying to sell you service that's not required. I follow the OM intervals with no problems. Over the years, almost all my vehicles have gone 200,000 plus with OM intervals or not even. For example, no automatic transmission fluid change even up to 300,000 miles. The only two vehicles I did't keep that long, I got rid of because I didn't like them, not because of problems.

There are shorter service intervals for extreme service (like taxis) and for racing (not the occasional blast down the drag strip but balls to the wall road racing) but these apply to almost no-one.

[302crossram]

ATF & filter
rear diff fluid
swap coolant