Gas tank fuel capacity.

Jimmy Brooks · Oct 7, 2020

I do have a gap tool, should I do this while driving or is it fine to do at idling?

Jimmy Brooks · Oct 7, 2020

I was planning on doing the old fashion way when my paint was all done. Most of the trips I do are just short runs, but I’ve tracked my going to and from the beach a couple of times. Anywhere from 17-20 mpg, so it’s not like I’m getting ridiculously bad gas mileage. I’ll make sure to do it the old fashion way when my paintings done to figure it out.

DaytonaRS7 said:
Have you calculated your MPG?
dont go by the dash. not to say its wrong, but its always good to double check if your trying to chase down a possible problem.

rough math....
you say you fill up with 19-21 gallons. ill average at 20 gallons.
250-225 range (per computer). ill use the average of 238 mile range. since i hope you fill up before you run out of gas, ill subtract about 30 miles from the range as the actual miles traveled.

that means your getting 208/20 = 10.4 MPG. seems low.

I drive a short 7 miles commute each way to work, and around town. I get 15.5mpg per the computer. i just took a road trip and average 20mpg. my computer says my range is about 350-375 miles per tank.

next time you fill up (actually 2 fill ups), calculate your mpg the old school way. i certainly hope and assume you know how, but just in case.....
1. fill up, stop at the click. do not top off/overfill.
2. note the mileage on the odometer.
3. drive for at least half a tank under normal conditions.
4. fill up. again, stopping at the click. note how many gallons you added.
5. note the mileage on the odometer.

subtract the miles in step 2 from step 5.
divide that number by the gallons from step 4.

also, after you calculate your actual MPG (you dont want to add any variable in the mean time), use BG 44K. its is a excellent fuel system cleaner...not just snake oil. add 1 bottle per tank, once a year. add it just before fill up. its actually part of the Land rover service schedule that im sure gets overlooked by most.
https://www.amazon.com/BG-44K-Fuel-System-Cleaner/dp/B07GT8RN6Z

Jimmy Brooks · Oct 7, 2020

Yes I am, but this has happened even before the bigger tires.

avslash said:
I'm sure you would have considered this, but are tire sizes larger than factory?

Michael Gain · Oct 8, 2020

Jimmy Brooks said:
I do have a gap tool, should I do this while driving or is it fine to do at idling?

Idling should be fine.

Jimmy Brooks · Oct 8, 2020

Here it is.

f1racer328 · Oct 8, 2020

Is your car up to operating temp? I'll go check mine too.

I haven't had a single fuel tank recently where I wasn't towing my boat or off roading, but I have a ton of logs on Fuelly on my MPG if you want to check it out and compare.

https://www.fuelly.com/car/land_rover/lr4/2013/f1racer328/858888

f1racer328 · Oct 8, 2020

Michael Gain · Oct 8, 2020

You're running rich, but it's even across banks and less than 15%. I would check again, plus add STFTs for both banks, and data log at speed.

If that doesn't show anything, it may just be driving style lol

Jimmy Brooks said:
Here it is.

View attachment 11730

Michael Gain · Oct 8, 2020

You're running lean, brother. LTFTs look good, but STFTs could improve. May just be a dirty filter, or the AIT sensor on the MAF may be dirty and the changing weather is throwing the ratio off

f1racer328 said:
View attachment 11731

f1racer328 · Oct 9, 2020

Michael Gain said:
You're running lean, brother. LTFTs look good, but STFTs could improve. May just be a dirty filter, or the AIT sensor on the MAF may be dirty and the changing weather is throwing the ratio off

Isn’t a positive % a richer mixture? I for the most part don’t think I have anything to worry about with my fuel trims. I’m just surprised it’s close to 0. The ambient temp has been 100-105 every day recently.

Gas tank fuel capacity.

Jimmy Brooks

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