Bingo fuel

[ColoradoMike]

We have been doing some fuel economy range tests since we purchased a couple weeks ago. I do not have enough data to go buy with only 700 miles on it since Sep 9.

My first and second "pen/paper" calcs got gave us 16.2 average over the two refueling stops here. Grenny calcs were 18.6 in its computer. This is with US gallons.

I drive fast on our 75mph interstates and am consistently faster ......but the Grenadier gets what I expect out of it.

I keep the 15mpg as a baseline in the back of my head for mental math on range to fill up.

 

[G-Man]

I get the first (yellow) low fuel warning when the tank is still a third full and then it switches to an angry red fuel warning at a quarter full which equates to roughly 120 miles and 90 miles respective range on a diesel model. Very strange if you're coming from a modern car but it kind of makes sense on a vehicle that is designed to be used out in the wilds and far from civilization. On the other hand, the heart-failure inducing warning 'bong' that accompanies the visual warnings is overkill for sure.

 

[landmannnn]

I claim the bingo prize.

 

[IGL]

Friday on the motorway... all of this seems to me to be a software bug

 

[landmannnn]

Friday on the motorway... all of this seems to me to be a software bug


View attachment 7872494

I withdraw my request for the Bingo prize. You win.

 

[Eric]

I claim the bingo prize.

View attachment 7872445

They may/could actual be both correct, they are measuring different things. The tank gauge is measuring the quantity of fuel left in the tank (circa 50l or 10 gals). But the remaining range is base on your current consumption rate. So if you were consuming fuel at an unprecedented rate for whatever reason (going uphill full revs for 5 miles in low range fast towing a 3.5 T trailer) that would be your remaining range under those circumstances.

 

[landmannnn]

They may/could actual be both correct, they are measuring different things. The tank gauge is measuring the quantity of fuel left in the tank (circa 50l or 10 gals). But the remaining range is base on your current consumption rate. So if you were consuming fuel at an unprecedented rate for whatever reason (going uphill full revs for 5 miles in low range fast towing a 3.5 T trailer) that would be your remaining range under those circumstances.

Actually my driveway is on a slope. If I park uphill it overreads, downhill it underreads.
I was parked downhill then moved it uphill which seemed to confuse everything.
Hopefully I am not getting 3 to 4 mpg.

 

[HereinDaRockies]

They may/could actual be both correct, they are measuring different things. The tank gauge is measuring the quantity of fuel left in the tank (circa 50l or 10 gals). But the remaining range is base on your current consumption rate. So if you were consuming fuel at an unprecedented rate for whatever reason (going uphill full revs for 5 miles in low range fast towing a 3.5 T trailer) that would be your remaining range under those circumstances.

Incorrect. I triggered the warning when reversing info my garage, up a sloped driveway.

 

[BrianK]

Thank you for everyone’s comments in the thread. I just purchased a Grenadier Trialmaster and I’m trying to get a sense of the real world fuel economy and range, especially range. I saw the comment which indicated 480 miles (120 miles per 1/4 tank) which would be fantastic, compared with what I thought it would be when it was filled up, 280 miles on the screen.
Does anybody have any new fuel economy or range observations to share? Highway, mountainous vs. flat, city, offroad? I have driven 177 miles and have more than 1/2 tank. Combined city and highway driving at moderate speeds.

 

[Nevada Grenadier]

Thank you for everyone’s comments in the thread. I just purchased a Grenadier Trialmaster and I’m trying to get a sense of the real world fuel economy and range, especially range. I saw the comment which indicated 480 miles (120 miles per 1/4 tank) which would be fantastic, compared with what I thought it would be when it was filled up, 280 miles on the screen.
Does anybody have any new fuel economy or range observations to share? Highway, mountainous vs. flat, city, offroad? I have driven 177 miles and have more than 1/2 tank. Combined city and highway driving at moderate speeds.

I have found the claimed 15mg to be accurate.

 

[pmatusov]

Thank you for everyone’s comments in the thread. I just purchased a Grenadier Trialmaster and I’m trying to get a sense of the real world fuel economy and range, especially range. I saw the comment which indicated 480 miles (120 miles per 1/4 tank) which would be fantastic, compared with what I thought it would be when it was filled up, 280 miles on the screen.
Does anybody have any new fuel economy or range observations to share? Highway, mountainous vs. flat, city, offroad? I have driven 177 miles and have more than 1/2 tank. Combined city and highway driving at moderate speeds.

https://3rj.org/Grenadier/#G

13.844 mpg over about 20kmiles. I'll post a 23k update soon.

 

[BrianK]

Thank you both

 

[wagons]

Thank you for everyone’s comments in the thread. I just purchased a Grenadier Trialmaster and I’m trying to get a sense of the real world fuel economy and range, especially range.

I have approx 6k miles on a new trial master purchased 4+ months ago.
Observations to date:
- I fill the tank every 275-300 miles driven.
- I’m averaging 14-15 MPG. (Calculated manually)
- Yellow fuel warning starts at 3/8 tank.
- Red fuel warning starts at 1/4 tank.
- I’ve gone as low as 1/8 tank and based upon the gas taken onboard, still had about 2-2.5 gallons remaining at that 1/8th tank level.

Hope that helps!

 

[Nevada Grenadier]

https://3rj.org/Grenadier/#G

13.844 mpg over about 20kmiles. I'll post a 23k update soon.

Depending on driving style and/or your normal driving conditions effect on MPG, I could see 13.8 as a reasonable average for sure.

 

[Zimm]

Depending on driving style and/or your normal driving conditions effect on MPG, I could see 13.8 as a reasonable average for sure.

9 of 10 people are a hell of lot closer to this than what they are claiming. If I use my "all oem computers lie by 1.5-2 mpg" rule of thumb, I'm 13.3 to 13.8. Which also seems to sort of line up with my other rule of thumb, that you get 10-20% less than EPA numbers.

I have two thumbs.

If you're looking to buy a car that adverts 15mpg, and mpg is a concern, why hell are you looking here? It says it right on the Ineos website. The have every motivation to make it look as good as they can, and 15 is what they put out there. Nobody magically gets 33% better than EPA with a piggyback or reprogram of a chip. The chip scam of the 80's took over the fuel additive scam of the 70's, and it just won't die.

 

[Tom109]

Last week in my loaner Grenadier the best indicated average I could get was 17mpg. My rule of thumb is to subtract 2mpg from the displayed average, so 15mpg. That’s a big difference from my Gren, even during the same daily driving which doesn’t hit 55mph.

Last Friday I picked mine up from RDS, filled up and shot down to DC/NoVA, then back to NJ on Saturday. I filled up near home and calculated 17mpg. No magic, 17 is my average over 7380 miles.

 

[Nevada Grenadier]

9 of 10 people are a hell of lot closer to this than what they are claiming. If I use my "all oem computers lie by 1.5-2 mpg" rule of thumb, I'm 13.3 to 13.8. Which also seems to sort of line up with my other rule of thumb, that you get 10-20% less than EPA numbers.

I have two thumbs.

If you're looking to buy a car that adverts 15mpg, and mpg is a concern, why hell are you looking here? It says it right on the Ineos website. The have every motivation to make it look as good as they can, and 15 is what they put out there. Nobody magically gets 33% better than EPA with a piggyback or reprogram of a chip. The chip scam of the 80's took over the fuel additive scam of the 70's, and it just won't die.

I always go by the odometer and how many gallons between fill ups. I have had tanks over 16mpg and a few under 13. I should also add that we do not daily drive the Gren and most of our miles are highway. My numbers are always 2mpg lower then the computer. I totally agree mpg never factored into the decision. I only keep track because it gives me a decent baseline to calculate range. I do make adjustments for the current driving conditions or how heavy my foot is feeling.

 

[AngusMacG]

I am 99% highway driving averaging around 75-80 mph on the highway. My vehicle is almost a year old and just over 42k miles. When I first bought it the mileage was terrible and was in the vicinity of about 13 mpg. The truck seemed to settle in and was averaging about 14.5 mpg. This fall, I added Bison Gear external molle panel on the drivers side and add 2 Jerry cans to that then the mileage dropped to about 13 mpg. About mid December I removed the Jerry cans (didn’t want to deal w/ice and snow if I needed access to them). Mileage has improved but not by a lot. Now running high 13 mpg. Last fill up I put in 20 gallons and went ~271 miles (13.5 mpg). Not sure if the cold weather has a dramatic effect or not.