Speaking of diesel gas mileage,
did I tell you about my hi skool daughter
who (ten years ago)
put gasoline in the diesel tank of the Volvo 740
6 cylinder in line supercharged diesel?

Yes, she was wondering why the nozzle didn't fit,
but she got a few gallons in the tank.

Perfectly good car ( I had already put 275,000 miles on it..)
shot to shxt...

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Everybody gets to ruin their first car:
mine was a 51 Buick Roadmaster.

I was a great car, once it got rolling:
but it just didn't like running air cooled.

Stupid damn car!

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Ok to avoid a sign:


My manual 7.3, with the "edge" set on "economy"
gets 17.1 calculated around town,
and just shy of 22 on the road at 70 MPH,
with the rpm like 2010, if I recall.

And this is DOWN 1 mpg recently, for some reason..

I think it's the accumulated crap I'm hiding in the bed box maybe??

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Somebody said there's a class action suit or two
filed against Ford and Chevy and Dodge
arising from discontent with the mileage obtained.

This is pure unsubstantiated 3rd party testimony..