What happened to my mpg's
12-11-2011, 04:59 PM
#22
JK Freak
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19.2 with stock bicycle tires, 15 with 285/75s on mine. It IS the tires. You're adding width (rolling resistence), height (leverage against drivetrain), weight (almost double the weight of the stock 225s), and air turbulence under and around your Jeep. Basically everything you can possibly do to kill mileage, that's what you've done with large tires.
Hence, the reason I sold my 285s after only 2 months and just bought 265s this week.
Hence, the reason I sold my 285s after only 2 months and just bought 265s this week.
um, why not just buy a volvo? I think you're the only jeep owner here that is going for smaller rubber 
Just busing your chops... that's one of the great things about jeeps... to each his/her own. Personally, I don't focus on mpg with a jeep... it's a jeep. If I wanted mpg I'd get a prius (Not!)
12-11-2011, 06:05 PM
#24
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Originally Posted by Bubbacon
um, why not just buy a volvo? I think you're the only jeep owner here that is going for smaller rubber Just busing your chops... that's one of the great things about jeeps... to each his/her own. Personally, I don't focus on mpg with a jeep... it's a jeep. If I wanted mpg I'd get a prius (Not!)
12-12-2011, 05:52 PM
#25
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You never get ground clearance from tires. That's a suspension thing. Also, like someone said above - you don't look for MPG with a Wrangler. Just drive it and enjoy it.
12-12-2011, 06:01 PM
#26
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12-12-2011, 06:05 PM
#27
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Originally Posted by pastorsteve
You never get ground clearance from tires. That's a suspension thing. Also, like someone said above - you don't look for MPG with a Wrangler. Just drive it and enjoy it.
12-12-2011, 07:00 PM
#30
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Originally Posted by pastorsteve
You never get ground clearance from tires. That's a suspension thing. Also, like someone said above - you don't look for MPG with a Wrangler. Just drive it and enjoy it.
32" tire to a 35" tire = 3" diameter gain /2 = 1.5" of added height at axle. You can add a 6" lift, but if you don't increase the size of your tire your axle and diff will remain at same height off the ground, so while the frame and tub would be higher, your axle won't clear any more obstacle height. With larger tires, it will.