I believe oversize tires defeat the accuracy of your speedo. Your calc would be better using a satellite - say use Waze to track your miles.
16.5 MPG on 30” tires
Getting 16.5 MPG right now, about to go from 30” to 32” tires. Will update on efficiency changes
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Someone a few years ago posted calculations. Found this but this is not the thread:
I got a 2 inch lift with 32 inch 265/75/16 tires and this thing is sucking gas now.............................. is this normal ?
1999 LR DII Performance Package with various Mods
Valentine One
Passport 9500ix
6 x Anti-Theft Camera System
2 x Anti-Theft Tracking devices
Veil Laser Paint
Anti-Laser Police Laser Jammer (5 heads + Dragon Eye protection) + Parking Sensors
Police Scanner + Waze
Powerful Pro-tuned CB-Radio with Fire-Stik
Remote+Hardwired License Plate Concealer
Armormax Bullet Proof Glass
Armormax Caltrop Deployment System
Steel Undercarriage Guards (Steering, Diff axles, Gas tank)
Voyager Roof Rack+six Jerrycans and five stacked Rotopax
Maxxis Razr Offroad Tires+Lift+LED bar
Allisport UK Aluminum Radiator
Allisport UK aluminum coolant tank with sight glass and coolant level sensor
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p76rangie
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Joined Jan 16, 2006
5,761 Posts
#2 · May 12, 2018
What makes it worse is that your odometer is now 10% out and that leads to 10% less miles for the same amount of fuel.
I got a 2 inch lift with 32 inch 265/75/16 tires and this thing is sucking gas now.............................. is this normal ?
1999 LR DII Performance Package with various Mods
Valentine One
Passport 9500ix
6 x Anti-Theft Camera System
2 x Anti-Theft Tracking devices
Veil Laser Paint
Anti-Laser Police Laser Jammer (5 heads + Dragon Eye protection) + Parking Sensors
Police Scanner + Waze
Powerful Pro-tuned CB-Radio with Fire-Stik
Remote+Hardwired License Plate Concealer
Armormax Bullet Proof Glass
Armormax Caltrop Deployment System
Steel Undercarriage Guards (Steering, Diff axles, Gas tank)
Voyager Roof Rack+six Jerrycans and five stacked Rotopax
Maxxis Razr Offroad Tires+Lift+LED bar
Allisport UK Aluminum Radiator
Allisport UK aluminum coolant tank with sight glass and coolant level sensor
SaveShare
Reply Quote
Like
[IMG alt="p76rangie"]https://www.landroversonly.com/d2/avatars/m/3/3965.jpg?1571397541[/IMG]
p76rangie
Registered
Joined Jan 16, 2006
5,761 Posts
#2 · May 12, 2018
Of course it is normal, you just stuffed up all your gearing and it is having to spin a lot heavier wheel.
What makes it worse is that your odometer is now 10% out and that leads to 10% less miles for the same amount of fuel.
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