Avg. MPG Loss Post Steel Front Bumper Install

[Burtz]

Hopeing someone might be able speak to this given most weight ~130lbs, ideally someone who is running on no lift and 265s.

I do ALOT of driving. Aluminum front bumper is not an option.
Thx

 

[Jeremy556]

It's going to depend on bumper model and type of driving. The weight will obviously hurt your mpgs in stop/go, but you'll probably notice it more in the increased aerodynamic drag at higher speeds.

 

[MyanRagahis]

Hopeing someone might be able speak to this given most weight ~130lbs, ideally someone who is running on no lift and 265s.

I do ALOT of driving. Aluminum front bumper is not an option.
Thx

I just put my Shrockworks bumper on Saturday at half tank. Stock tires but with 2+ inches of lift. Sagged about half an inch though now. I'll let you know after my next fill up. As of right now though my dash is telling me 16.7 today and I'm at a quarter tank. Before the bumper I was hovering a little over 17-18. I was driving it a little harder this tank before the bumper though.

 

[greatape]

Are you implying running that front-end weight on a stock suspension?

 

[Burtz]

I just put my Shrockworks bumper on Saturday at half tank. Stock tires but with 2+ inches of lift. Sagged about half an inch though now. I'll let you know after my next fill up. As of right now though my dash is telling me 16.7 today and I'm at a quarter tank. Before the bumper I was hovering a little over 17-18. I was driving it a little harder this tank before the bumper though.

Thanks, for the extra info, and being willing to track your mpgs. The shrockworks bumper with full bull is actually the route I'm wanting to go. Had one very similar on my last jeep.

Are you implying running that front-end weight on a stock suspension?

Nope, would throw on some 5100s all around, and OME front springs. Just wanting to stay close to stock height for mpgs (max increase of 1inch up front).

I will be throwing down 400miles a week in commuting for @ least the next year.

 

[Vinsil]

Holy hell, 400 miles a week would have me in a car that got 40 mpg, sell at the end of the year for close to what I paid and leave my Runner alone!

Buy a cheap civic for the price of the bumper and rock it.

 

[Burtz]

Holy hell, 400 miles a week would have me in a car that got 40 mpg, sell at the end of the year for close to what I paid and leave my Runner alone!

Buy a cheap civic for the price of the bumper and rock it.

Sold my 2013 Jetta TDI back to VW for a pretty penny, and rolled that money into the 4Runner..... do miss 45 mpg. But it was a must with a second kiddo on the way.

 

[wfo9]

Totally depends on the bumper... The ones that are good offroad, offer horrible aerodynamics for obvious reasons.

Just to give you an idea. Chevrolet colorado with duramax and regular front bumper gets EPA rated at 28mpg hwy, Same truck in Zr2 configuration with high clearance factory front bumper and small lift, 22mpg EPA. (they both get slightly better in real world use...) There is no weight change... And that is with some effort put into the factory zr2 aero, Aftermarket bumpers don't even consider it....

I would say it's a solid 15-25% hit on most bumpers on the hwy. Really makes no difference below 45mph.

 

[MyanRagahis]

Thanks, for the extra info, and being willing to track your mpgs. The shrockworks bumper with full bull is actually the route I'm wanting to go. Had one very similar on my last jeep.

Just a heads up. I'm at half tank now and been seeing 17+ mpg pretty steadily. Stock 265's with the Shrockworks bumper and hoops and a 2inch lift.

Work is about 15 miles for me. 4 miles of that is city driving. I can drop down to 16.7, then see a little over 17 after the next 11 miles of highway driving.

Drove about 20-30 miles on the highway this past weekend and it was slowly creeping upwards to 18mpg on my indicator.

I'd say you could maybe see a bit better mpg's if you don't intend to run a lift. I'd upgrade the shocks/springs though with the added weight.

 

[4RnR Grl]

You'll get all kinds of nosedive with that bumper (I have it, it's heavy). Hopefully your suspension can compensate enough. I highly recommend the suspension gets done first. It is dangerous to drive it on stock suspension with this bumper upfront. I would NOT do that.

 

[Burtz]

Just a heads up. I'm at half tank now and been seeing 17+ mpg pretty steadily. Stock 265's with the Shrockworks bumper and hoops and a 2inch lift.

Work is about 15 miles for me. 4 miles of that is city driving. I can drop down to 16.7, then see a little over 17 after the next 11 miles of highway driving.

Drove about 20-30 miles on the highway this past weekend and it was slowly creeping upwards to 18mpg on my indicator.

I'd say you could maybe see a bit better mpg's if you don't intend to run a lift. I'd upgrade the shocks/springs though with the added weight.

Thank you for the follow through!! really appreciate the info, helps point me in the right direction.

No one worry.... Im not an offroad newb, have had 4 jeeps I built up myself... I will admit I am a 4runner newb, but would never run a steel bumper on stock suspension.

I do miss the capability of a solid front axle tho :0

 

[3wbdriver]

Thanks, for the extra info, and being willing to track your mpgs. The shrockworks bumper with full bull is actually the route I'm wanting to go. Had one very similar on my last jeep.


Nope, would throw on some 5100s all around, and OME front springs. Just wanting to stay close to stock height for mpgs (max increase of 1inch up front).

I will be throwing down 400miles a week in commuting for @ least the next year.

Even set at 0 OME's will give you 2" of lift. I have OME 885's on 5100's set at 0, with a SSO Slimline Hybrid bumper and winch (~135 total pounds). I had been running at 1.75" on the factory springs before the bumper. AND I'm still running 265 AT's on mine in spite of lots of "encouragement" to go larger. I didn't take a real hit to my mpg's until I hung 600 more pounds of steel and a roof top tent. I don't daily drive it anymore because I have a 600 mile per week commute, but when I do, if I am careful on the upslopes and keep it under 65 I can still eke a little over 17 out of it. Of course that goes completely out the window as soon as I hit interstate speeds.

 

[Burtz]

Even set at 0 OME's will give you 2" of lift. I have OME 885's on 5100's set at 0, with a SSO Slimline Hybrid bumper and winch (~135 total pounds). I had been running at 1.75" on the factory springs before the bumper. AND I'm still running 265 AT's on mine in spite of lots of "encouragement" to go larger. I didn't take a real hit to my mpg's until I hung 600 more pounds of steel and a roof top tent. I don't daily drive it anymore because I have a 600 mile per week commute, but when I do, if I am careful on the upslopes and keep it under 65 I can still eke a little over 17 out of it. Of course that goes completely out the window as soon as I hit interstate speeds.

Thank you for your feedback Sir. I do have to admit I have been stalking your build thread. I love that your rig is very practical, and highly capable on the stock tire size