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General Category => General Discussion => Topic started by: dave1068 on August 06, 2021, 03:57:32 PM

Title: Non MC question: improved gas mileage by 50-60 miles
Post by: dave1068 on August 06, 2021, 03:57:32 PM: Hey all,

I know we have a good variety of engineers, gear heads, etc here. I recently got a new OEM windshield in my Jeep Renegade Trailhawk and do 100miles a day for work. Its all freeway and I avg 70;s ish MPH. I usually go about 320-330 miles on a tank of gas. This week, for whatever reason, Im projecitng about 360-380. The only change is I had a new windshield put in by safelite.

And yes, my driving route and speed have not changed, just curious if anyone knows why i may have been able to go 60more miles on a full tank?

Thanks-
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: Don G on August 06, 2021, 04:39:04 PM: Fuel composition changed? DonG
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: yogidozer on August 06, 2021, 04:43:18 PM: Instead of miles per tank, figure miles per gallon. More accurate
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: Huzo on August 06, 2021, 04:56:31 PM: If the shape is the same then it’s unrelated.
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: Kev m on August 06, 2021, 05:07:54 PM: Possibilities include:

* Ambient temperature. The hotter, the thinner the air and less resistance which adds at highway speeds

* Fuel formulation - less ethanol or oxygenation = more miles per gallon.

* Differences in traffic conditions - more drafting at steady speeds, less stop and go, more gradual acceleration all = more mpg.
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: yogidozer on August 06, 2021, 05:16:55 PM: I have an older Jeep, did a lot of four wheeling with it.
One day I noticed the fuel guage wasn't reading normally.
The sender in the tank must have bounced around, I guess.
Never really concerned me, I never let it get low anyway.

(https://i.ibb.co/QNp81bX/100-2235.jpg) (https://ibb.co/QNp81bX)
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: LowRyter on August 06, 2021, 05:20:34 PM: Since the windshield is the least aero thing on a car, particularly a Jeep, it could be possible. Just the smooth surface on new glass might make a difference, or perhaps how solid the glass was mounted and the attendant vibration, or leaking weather stripping.

Did the windshield make a difference? Perhaps.
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: RinkRat II on August 06, 2021, 06:19:28 PM: Do you have a practical joker as a neighbor? Adds a little gas to your Jeep once a week? Co-worker perhaps?

Paul B :boozing:
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: ridingron on August 06, 2021, 06:38:17 PM: Quote
Instead of miles per tank, figure miles per gallon. More accurate

THIS!
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: dave1068 on August 06, 2021, 07:02:59 PM: All good answers, it could be the gas as it was 333 a gallon in a hick town, im avg about 30mpg, prior 26-27, so 4 more mpg x 12g tank, almost 50 more mpg....we shall see what next tank leads to
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: Tom on August 06, 2021, 08:49:13 PM: Were you driving with your head out of the driver's side door??? but now you don't have to. :evil: 😄
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: Dirk_S on August 06, 2021, 08:57:56 PM: Quote from: RinkRat II on August 06, 2021, 06:19:28 PM
Do you have a practical joker as a neighbor? Adds a little gas to your Jeep once a week? Co-worker perhaps?

Paul B :boozing:

I want that practical joker as MY neighbor!!
Title: Re: Non MC question: improved gas mileage by 50-60 miles
Post by: Tom on August 06, 2021, 09:01:22 PM: After adding gas. The next week start siphoning gas out. :evil: