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Old 06-22-2022, 02:18 PM   #3 (permalink)
Caddylackn
EcoModding Apprentice
 
Join Date: Jun 2022
Location: Bremerton, WA
Posts: 104

Passat TDI Wagon - '97 VW Passat Wagon TDI
90 day: 55.81 mpg (US)

Blue - '21 Hyundai Sonata Blue
90 day: 53.79 mpg (US)
Thanks: 32
Thanked 57 Times in 44 Posts
It would help if you told us the year and maker of your van
which engine and transmission you have. Is this carbureted or fuel injected? Does it have an overdrive?

When was your last tune up (plugs? cap & rotor? spark plug wires? Air filter?)

And yes, people try to improve their fuel economy on motor homes all the time. Yes, there is always some improvement to be had. The fuel $ savings on big rigs is substantial, since they consume so much fuel.

Going from 10 mpg to 12 mpg is a 20% improvement and will save you 20% on fuel, which would be significant if you drive a lot.

The biggest improvement you will see in a driving a big giant brick is to reduce speed. There is probably a 20% increase in mpg in slowing down to 55 mph from 65 mph.

If your car is newer than 1996, get yourself a Scan Gauge II or other real time mpg monitoring device. Changing your driving habits by watching the gauge can save you another 20%.
__________________
97 Passat TDI Wagon
Bosio 520 DLC nozzles, chip tune
Mufflerectomy
306k miles
Scan Gauge II
full belly pan
26 gallon tank
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Ecky (06-22-2022)