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Old 05-10-2015, 11:06 AM   #4 (permalink)
MPGomatic
Needs More Duct Tape
 
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Join Date: May 2012
Location: the swamps of jersey
Posts: 157

Slambo - '99 Honda Civic HX
90 day: 44.21 mpg (US)
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Quote:
Originally Posted by Old Mechanic View Post
Best guess would be you filled before at the same pump then changed pumps and got the greater than expected fill.

If so then refill at the prior pump at the same point on the gas guage. If it stops at the amount you had expected, as it had done before, then pull over to the premium pump and see if you can get 2+ more gallons.

Your rear end was lower than the front one the earlier fills, not so at the premium pump.

Try it and see what happens.
Thanks for the suggestion, Mech! I've never seen anything this extreme before.

I'll go back to the first pump on the next visit. Both are on the same side of the island. From memory, it's level, but I'll give it a good look. Perhaps the tires were off the concrete pad on one side or the other …
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