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Old 06-04-2014, 09:56 PM
Drago's Avatar
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Join Date: Mar 2014
Location: White Oak Swamp
Posts: 2,318
Well that ruined my mileage

While driving my daughter to her violin instructor I noticed my Fuel gage did not match my trip odometer. I got in the habit of setting the trip od every time I fill up, I do this to track my mileage and I've had fuel gages go bad on me. I loaned my car to my teenage son to run some stuff over to Gramma's and go to work, apparently along the way he took a detour, a big detour, and he didn't want to get busted so he reset the trip od. He could of asked. He could of said " Excuse me Father but may I borrow the 'Benz to pursue and impress women of loose moral character?" Hell I would of let him. If he didn't help me make the BioD I would of been really upset

1993 MB 300D 245K died.
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Old 06-04-2014, 11:23 PM
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1983 300SD, 4 speeed
Join Date: Jul 2006
Location: Raleighish, NC
Posts: 664
Careful--some of those women might resemble those remarks......
If it ain't broke take it apart and find out why.

1983 300SD, 4 speed
1994 C280
1987 300TD wagon
1996 HD Road King

Ride in Peace Eric Peterson, Harley of Macon
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Old 06-04-2014, 11:54 PM
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Join Date: May 2009
Location: The slums of Beverly Hills
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Just be thankful that he didn't try to Ferris Bueller the odometer.
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Old 06-05-2014, 12:04 AM
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Location: San Diego
Posts: 2,978
Don't know what you are talking about. You want the mpg per tank or mpg of your car. You still have all the numbers to calculate the average mpg. You expect young adults to do thing like this. There are worst, much worst, things young adults can indulge themselves in. So relax and don't even say a word.
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details.

2 x 87 300SDL
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Old 06-05-2014, 12:32 PM
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Location: Middle TN
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Originally Posted by crashone View Post
Careful--some of those women might resemble those remarks......
And that might be a fortunate thing or at least young son's intent.
85SD 240K & stopped counting. 84SD 180,000. Thinking of painting both.
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Old 06-05-2014, 04:34 PM
Mad Scientist
Join Date: Dec 2012
Location: Oregon
Posts: 1,496
Make him put a couple bucks in the ashtray when he makes his detours, and make sure the back seat gets cleaned well.

And make sure he has an 100% impermeable (ahem) filter in his wallet and that he will use it. Some kinds of dirt don't wash off.
617 swapped Toyota Pickup, 22-24 MPG, 44k miles on swap
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Old 06-05-2014, 05:24 PM
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Join Date: Aug 2010
Location: Sacramento, CA
Posts: 2,543
I would never trust the fuel gage to determine mpg. I know you are just checking consistency, not going for absolute accuracy, but it wouldn't be much harder to do it right. Note the gals used to fill-up (completely) and divide by the trip meter reading, reset the meter for next time. Occasionally, on a long trip, compare your odometer to GPS or highway mileage markers and calculate a "scale factor" for "actual miles".

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