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I seriously doubt your mileage increased with a larger, heavier tire.
Did you update your speedometer gear or are you using a GPS instead of the odometer?
I just looked at Tirecrawler.com, and 4 33x10.50r15 BFG All-terrain KO2s actually weigh 8 pounds LESS than 4 31x10.50r15 Mud-terrain KM2s. Even with the size difference.
The four mud tires with his setup would have weighed 208.4 pounds, while the all-terrain tires would now weigh 200.5 pounds.
So yes, what's saying is 100% possible, and probably true. Also you're talking about a knobby mud terrain vs a glorified all-terrain. They also have much less rolling resistance.
I will say that my Jeep drives completely different with my KO2s compared to the KM1s. The rolling resistance just isn't there anymore and my MPG have went up +2 with the same size tire. I shed about 10 pounds in unsprung weight from my Jeep. Not much, but it adds up.
With the larger tires having an effect like a higher gear ratio, I could see a positive gain if he does a lot of highway driving in relatively flat areas. As long as he isn't fighting the weight with stop and go driving.
Am I incorrect?
More surface area, I believe under the correct conditions you are correct.
Im sure a ton can relate to sagging headliners lol ripped mine out today, not sure what the previous owner did to it but geez. I like the way it turned out, its not perfect by any means, the curves around the rear speakers proved to be a challenge, but its better than that rats mest hanging over my head. I think im due for some LED lights though.
10-14-2016, 08:21 PM
