Tom wrote
Most manufacturers actually recommend 7 to 8 K miles and have for years.
Every 3.000 miles was a dealer invention.


Sorry Tom, First you said it was oil co hype, now your saying its the
dealers invention.
Unless the dealer wrote the owners manual on my 02' Silverado HD 2500
4x4, then your just blowing smoke.
Just to be sure Alzhiemers hasn't kicked in yet I checked my manual this
AM, and it still says every 3,000 miles.
As far as Dealer hype, Oil co hype, Jiffy lube hype goes, It don't
matter a lick to me, since I've always seviced my own vehicles.
So far so good. UD