315/70 Tires, how bad will it hurt my mileage

mdrnizd · 05-30-2008, 12:03 AM

I am wanting to get some 315/70 17 BFG AT's and was wondering how bad it will hurt my mileage. They will also be on stock wheels.

Those of you that have these tires do you like them and are they lasting mileage wise?

Do you have to have a leveling kit with stock wheels?

__________________
04.5 Dodge 2500,QC,SLT,4WD,SB, TCS TC, HTS Valve Body, MagnaFlow Exhaust, Smarty S06, Suspended by Carli, Nitto Trail Grapplers 35 12.50 17's

Ed ke6bnl · 05-30-2008, 04:13 AM

Quote:

Originally Posted by mdrnizd

I am wanting to get some 315/70 17 BFG AT's and was wondering how bad it will hurt my mileage. They will also be on stock wheels.

Those of you that have these tires do you like them and are they lasting mileage wise?

Do you have to have a leveling kit with stock wheels?

I put those tires on my 98.5 Dodge 4x4 with Hummer rims. My milage is 17.5 to 18.5 roughly. I bought the truck with large tires so can not compare. the speedometer was recalibrated before I got the truck. and rechecked with the GPS. 70mph is right at 1700rpm with automatic trans.

__________________
1998 CTD 24v,DTT trans billet in and out,Edge EZ, exhaust brake, 4" turbo back exhaust, 275 injectors, Mag-tech trans and diff pan/cover, piller gages, digital fuel psi, 4door, shortbed, larger turbo.Air Dog fuel pump/filter/air water separator

Bandits Diesel · 05-30-2008, 04:52 AM

this is gonna hurt, on mine when it was stock it avg 18. i put the 315 on it it went to 11 with a chip intake and exh i got it back to 14- 15 with the way i drove it easy. mhop big tires are long gone and not worth the money or waste of time for it.

__________________
99 ram 2500. 4x4 qc lwb. nothing left stock. over 800 hp looking for 1000 hp or more.

mdrnizd · 05-30-2008, 09:46 AM

Bandits Diesel did you have the speedometer recaliberated? If not that is why I would think it dropped so much.

__________________
04.5 Dodge 2500,QC,SLT,4WD,SB, TCS TC, HTS Valve Body, MagnaFlow Exhaust, Smarty S06, Suspended by Carli, Nitto Trail Grapplers 35 12.50 17's

kyle667 · 05-30-2008, 09:50 AM

I have them on stock steely rims w\ the 2" leveling kit. It did not change my milage by more than 1-2 mpg IF even that. The truck got 18-19 city 20 hwy before the tires and leveling kit - now I average 19 hwy and 18 cty...

__________________
'05 3500 SRW 4x4 2" Hell Bent Steel Leveling kit w\ 35x12.50 BFG's

foghornBIGHORN · 05-30-2008, 09:53 AM

Quote:

Originally Posted by mdrnizd

I am wanting to get some 315/70 17 BFG AT's and was wondering how bad it will hurt my mileage. They will also be on stock wheels.

Those of you that have these tires do you like them and are they lasting mileage wise?

Do you have to have a leveling kit with stock wheels?

mdrnizd, what are you runnin now? I was thinkin about doin the same thing until fuel took a turn for the worst. I just filled up and hand calculated my mileage to about 20.2 (85% highway) which is damn good IMO. I'm runnin 285/70 BGF AT's right now their right around 40k. I figured i can get another 5-10 until I desperately need new rubbers. But, I feel like if I upped it to 315's, it'd hurt the wallet much more than it would help my ego haha.

As far as fittin em...You'd be fine, the space I have in my wheel well is rediculous with my levelin kit, looks like tonka truck tires on a big rig.

Any other guys see reaaaally bad mileage drop with 315 AT's?

__________________
Silver 2006 Quad SLT 2500 CTD 5.9L 2" HBS : 35X1250 BFG KM MTs on Stocker 17s : ICEBOX w/ Amsoil Nano 4091 : BD Intake Elbow : FBD 5" TBE : SMARTY SR REVO : KIA Grid Heater/Kitty/Silencer

Drew · 05-30-2008, 10:09 AM

went from the stock BFG 265's to yokohama 315's not long ago. . .@70 I would average around 17.7-19.2 mpg. at the beginning of this month I took a 600 mile round trip vacation and averaged 18.2 running 70-75mph. hand calculated BTW

__________________
04.5 6spd QC 4x4 4.10's line-x on the rockers, TST, smarty 5-31-09, 475/853
73K still on the stock clutch, lift pump and all other internals
giving her 'H' 'E' double hockey sticks every day

Hot Stuff · 05-30-2008, 07:43 PM

I only dropped about 1.5mpg when I went to the 315's. Where are you located? Fill out your sig. I'm thinking about selling my 315's and goin to 35" BFG MT's.

__________________
'03 Black 2500 QC/LB 4x4, 6 speed, BHAF, 2" lift, black H2's, 35" BFG MT's, B&W turnover, Juice w/ Attitude, 5" str8 pipe, BD lift pump, spin on filters, Firestone bags

Ohio Coal Roller

mdrnizd · 05-30-2008, 10:34 PM

Quote:

Originally Posted by foghornBIGHORN

mdrnizd, what are you runnin now? I was thinkin about doin the same thing until fuel took a turn for the worst. I just filled up and hand calculated my mileage to about 20.2 (85% highway) which is damn good IMO. I'm runnin 285/70 BGF AT's right now their right around 40k. I figured i can get another 5-10 until I desperately need new rubbers. But, I feel like if I upped it to 315's, it'd hurt the wallet much more than it would help my ego haha.

As far as fittin em...You'd be fine, the space I have in my wheel well is rediculous with my levelin kit, looks like tonka truck tires on a big rig.

Any other guys see reaaaally bad mileage drop with 315 AT's?

I am running the stock Michelin's right now and I am only get 15.5 everyday driving. I can't seem to get my mileage up though.

I am in Oklahoma City.

__________________
04.5 Dodge 2500,QC,SLT,4WD,SB, TCS TC, HTS Valve Body, MagnaFlow Exhaust, Smarty S06, Suspended by Carli, Nitto Trail Grapplers 35 12.50 17's

**Austin The DieselTech** · 05-30-2008, 10:48 PM

I can't seem to break 18 in my truck with stock tires.

__________________
Austin Jenson - Napavine, Wa
2003 2500 6Spd QCLB 4X4 AFE, DiPricols, SBC 3600 DD, Studs, Silver Bullet, Flux 2's, Floor It STG3 CP3 and rail cap, Smarty, AirDog, 6" Miters, leveled 2" on 35's, Special Thanks to Wally @ FTE Diesel, James @ Rollin Smoke Diesel, and Nick @ Low Budget Diesel Performance
Washington Chapter

MasterMind · 05-31-2008, 02:57 AM

I got 19 on the free way with stockers. Now I get about 17 on the free way, roughly 15-16 around town with my 315's

__________________
'07 3500 5.9L White SLT 4x4 Short Box QuadCab Ram, Auto, aFe stg 2, Silencer Ring MIA, AeroTurbine 4040 with 5 1/2" Tip, 35" BFG T/A K/O, 2" Level Kit.

Hot Stuff · 05-31-2008, 03:46 AM

Everyday driving i get about 15 (hand calculated) and highway I get 20 (hand calculated). I REALLY makes a difference in how you drive. If I drive 65 the MPG will hit 20-21. As soon as I hit about 68 or so mph, the MPG goes down. This is with my 315's. I went to Chattanooga last weekend with the truck (wife, me, all our crap) which is about 600 miles one way through the mountains of KY and TN. and did 19.8 MPG. I picked up a gooseneck flatbed trailer while I was there, (7000lbs empty) and drug it home and got 12 MPG pulling it through the mountains.

__________________
'03 Black 2500 QC/LB 4x4, 6 speed, BHAF, 2" lift, black H2's, 35" BFG MT's, B&W turnover, Juice w/ Attitude, 5" str8 pipe, BD lift pump, spin on filters, Firestone bags

Ohio Coal Roller

05-30-2008, 12:03 AM	#1 (permalink)
mdrnizd Cummins Enthusiast Join Date: Sep 2007 Posts: 259 Thanks: 0 Thanked 4 Times in 4 Posts mdrnizd's Truck Pics	315/70 Tires, how bad will it hurt my mileage I am wanting to get some 315/70 17 BFG AT's and was wondering how bad it will hurt my mileage. They will also be on stock wheels. Those of you that have these tires do you like them and are they lasting mileage wise? Do you have to have a leveling kit with stock wheels? __________________ 04.5 Dodge 2500,QC,SLT,4WD,SB, TCS TC, HTS Valve Body, MagnaFlow Exhaust, Smarty S06, Suspended by Carli, Nitto Trail Grapplers 35 12.50 17's

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05-30-2008, 04:52 AM	#3 (permalink)
Bandits Diesel Cummins Fan Join Date: Mar 2008 Location: Chatsworth Ga Posts: 56 Thanks: 0 Thanked 0 Times in 0 Posts Bandits Diesel's Truck Pics	this is gonna hurt, on mine when it was stock it avg 18. i put the 315 on it it went to 11 with a chip intake and exh i got it back to 14- 15 with the way i drove it easy. mhop big tires are long gone and not worth the money or waste of time for it. __________________ 99 ram 2500. 4x4 qc lwb. nothing left stock. over 800 hp looking for 1000 hp or more.

05-30-2008, 09:46 AM	#4 (permalink)
mdrnizd Cummins Enthusiast Join Date: Sep 2007 Posts: 259 Thanks: 0 Thanked 4 Times in 4 Posts mdrnizd's Truck Pics	Bandits Diesel did you have the speedometer recaliberated? If not that is why I would think it dropped so much. __________________ 04.5 Dodge 2500,QC,SLT,4WD,SB, TCS TC, HTS Valve Body, MagnaFlow Exhaust, Smarty S06, Suspended by Carli, Nitto Trail Grapplers 35 12.50 17's

05-30-2008, 09:50 AM	#5 (permalink)
kyle667 Cummins Enthusiast Join Date: Oct 2007 Location: Orlando Florida Posts: 224 Thanks: 0 Thanked 0 Times in 0 Posts kyle667's Truck Pics	I have them on stock steely rims w\ the 2" leveling kit. It did not change my milage by more than 1-2 mpg IF even that. The truck got 18-19 city 20 hwy before the tires and leveling kit - now I average 19 hwy and 18 cty... __________________ '05 3500 SRW 4x4 2" Hell Bent Steel Leveling kit w\ 35x12.50 BFG's

05-30-2008, 10:09 AM	#7 (permalink)
Drew Tech Specialist Join Date: Apr 2006 Location: Fayetteville Ga Posts: 1,351 Thanks: 0 Thanked 5 Times in 4 Posts Drew's Truck Pics	went from the stock BFG 265's to yokohama 315's not long ago. . .@70 I would average around 17.7-19.2 mpg. at the beginning of this month I took a 600 mile round trip vacation and averaged 18.2 running 70-75mph. hand calculated BTW __________________ 04.5 6spd QC 4x4 4.10's line-x on the rockers, TST, smarty 5-31-09, 475/853 73K still on the stock clutch, lift pump and all other internals giving her 'H' 'E' double hockey sticks every day

05-30-2008, 07:43 PM	#8 (permalink)
Hot Stuff Smokin' Join Date: Dec 2007 Location: Republic, Ohio Posts: 3,001 Thanks: 2 Thanked 10 Times in 10 Posts Hot Stuff's Truck Pics	I only dropped about 1.5mpg when I went to the 315's. Where are you located? Fill out your sig. I'm thinking about selling my 315's and goin to 35" BFG MT's. __________________ '03 Black 2500 QC/LB 4x4, 6 speed, BHAF, 2" lift, black H2's, 35" BFG MT's, B&W turnover, Juice w/ Attitude, 5" str8 pipe, BD lift pump, spin on filters, Firestone bags Ohio Coal Roller

05-30-2008, 10:48 PM	#10 (permalink)
Austin The DieselTech Washington Chapter Pres. Join Date: Sep 2007 Location: Napavine, Wa Posts: 1,792 Thanks: 3 Thanked 1 Time in 1 Post Austin The DieselTech's Truck Pics	I can't seem to break 18 in my truck with stock tires. __________________ Austin Jenson - Napavine, Wa 2003 2500 6Spd QCLB 4X4 AFE, DiPricols, SBC 3600 DD, Studs, Silver Bullet, Flux 2's, Floor It STG3 CP3 and rail cap, Smarty, AirDog, 6" Miters, leveled 2" on 35's, Special Thanks to Wally @ FTE Diesel, James @ Rollin Smoke Diesel, and Nick @ Low Budget Diesel Performance Washington Chapter

05-31-2008, 02:57 AM	#11 (permalink)
MasterMind Cummins Fanatic Join Date: Feb 2008 Location: Ogden, Ut Posts: 165 Thanks: 0 Thanked 0 Times in 0 Posts MasterMind's Truck Pics	I got 19 on the free way with stockers. Now I get about 17 on the free way, roughly 15-16 around town with my 315's __________________ '07 3500 5.9L White SLT 4x4 Short Box QuadCab Ram, Auto, aFe stg 2, Silencer Ring MIA, AeroTurbine 4040 with 5 1/2" Tip, 35" BFG T/A K/O, 2" Level Kit.

05-31-2008, 03:46 AM	#12 (permalink)
Hot Stuff Smokin' Join Date: Dec 2007 Location: Republic, Ohio Posts: 3,001 Thanks: 2 Thanked 10 Times in 10 Posts Hot Stuff's Truck Pics	Everyday driving i get about 15 (hand calculated) and highway I get 20 (hand calculated). I REALLY makes a difference in how you drive. If I drive 65 the MPG will hit 20-21. As soon as I hit about 68 or so mph, the MPG goes down. This is with my 315's. I went to Chattanooga last weekend with the truck (wife, me, all our crap) which is about 600 miles one way through the mountains of KY and TN. and did 19.8 MPG. I picked up a gooseneck flatbed trailer while I was there, (7000lbs empty) and drug it home and got 12 MPG pulling it through the mountains. __________________ '03 Black 2500 QC/LB 4x4, 6 speed, BHAF, 2" lift, black H2's, 35" BFG MT's, B&W turnover, Juice w/ Attitude, 5" str8 pipe, BD lift pump, spin on filters, Firestone bags Ohio Coal Roller