Man, this "MUST change oil @ 3K!!!!" thang has got me wondering about the actual effectiveness of mass marketing & advertising!
Almost any good oil (make that "one that meets the OEM requirement for grade and weight") ought to provide adequate protection IN EVERY SENSE for a well-maintained, unabused engine, within the normal parameters of usage.
I'm not talking about a winter of -37 degree start-ups, nor Death Valley ambient temps, nor 75 X 2 minute trips a day: Normal use.
Going 4K once or twice
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should not result in a catastrophic engine failure, greatly diminished performance or reduction in gas mileage, or huge amounts of additional wear, accumulations of sludge, etc.
I think we need to remember that the "EVERY 3K!!!" mantra is from the quickie-lube places and the oil companies that sell them oil! And that this is directed towards the CONSUMERS, many of whom have never (and would also never consider!
![[No no]](/forums/graemlins/nono.gif)
)changed their oil themselves...
OR an air filter "It started right up!"
fuel filter "I put in a can of STP!"
Coolant "It's still green!"
brake fluid "Brakes still work!"
![[LOL!]](/forums/graemlins/lol.gif)
and are blissfully driving around (with under-inflated tires) with 17K on their last oil change waiting for the red lights to go out... "They went out when I turned it off!"
![[crushedcar]](/forums/graemlins/crushedcar.gif)
The nice man at the Dealership offered to check the Halogen in the headlights for free!
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, but true! There's one born every...