Truck gas mileage

Hey...

I always joke about the 10.5 mpg my Armada gets. I just got new tires from 6-10 yr old goodyears to now michelins in the same size. I swear its rolling down the road a lot easier now.

Do old tires just start to have high rolling resistance when they age, or is it because my old front tires were worn pretty unevenly maybe that was slowing the car down?

Im curious what the MPGs will show here in the near future.

 

You’re just not having to work so hard to push the gas pedal, gym rat.

 

I got an extra 3mpg out of the Prius by putting on low roll resistance tires… Bridgestone Ecopias… mind you that’s only about a 6% improvement but still worth it…

so you may notice a tiny improvement

 

a worn tire has slightly less circumference. less tread depth. how much ? i have no idea, but it stands to reason that a tire with mega mileage is having to rotate a few more times a mile than a brand new tire with deep dread depth ?

 

Ill know in another week or so if its imagined shint new tire syndrome or for real

But my MPGs have been steadily getting worse over the last couple years along with the uneven front tire wear

 

I’m sure tread pattern has a lot to do with it and if your front end is out of alignment that will also affect fuel economy. Whatever makes it harder to make your wheels go will show up in fuel consumed.

 

Yes tires can make a massive difference. Tread design and compounds can easily knock off 10% from best to worst

 

If you got an alignment also when you put the tires on it will feel better. Plus always feels better with new rubber.

 

never tried to reuse one… pretty gross but to each their own

 

It’s the Michelins making the ride feel better.

MPG aside and as I posted previously in another related thread IMO and experience Michelin makes the best truck tires.

Just had to put that out there.

 

Hysteresis loss should be higher on soft, worn and under inflated tires.
I air mine up and use cruise as often as possible. My F150 with same hp gets less than my 25 yr old Suburban did.

 

After about a month .... Yep my MPGs are better by about .5 the little computer has been on 11.0 for a while with my usual driving. I havent had an alignment either its just new tires.

 

You should see what bicycle tires can do when you do 2, or 3 digit rides

 

Whooohooo!

My MPGs are back. Just did a 6 hr hwy drive and my computer says 16.4 mpg. 11 in town. Now I feel like I can hit the road some more...

 

Just did a drive over to Berlin Michigan across I69 to watch a race and with cruise set at 72mph, my 24 Sierra showed 22mpg average. With the 5.3/10spd.

 

If you’re going for higher gas mileage, cruise control is a “no no”.

 

After your tires break in (yea...it's a thing) you should double or even triple your current mileage....believe me not your trip computer!

 

So true. When driving my RV, I can get at least 1mpg better without cruise. Usually traffic around me isn't as happy because I will pick up a bunch of speed going downhill, and lose it going up. Instead of the throttle closing on downhill, then downshifting and full throttle climbs up the other side.

 

Put down the crack pipe

 

Ive driven hundreds of thousands of miles sans cruise... the convenience of CC outweighs any mpgs. My 10 speed truck accelerates at 500-700 rpms when encountering a grade in 10th... but never lower than 8th or 2500 rpms. You could manage it from the steering wheel with the +/- but again the relaxation benefit of cruise is worth the carbon footprint