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-   -   khomo to michlin energy saver swap (https://ecomodder.com/forum/showthread.php/khomo-michlin-energy-saver-swap-30585.html)

moonmonkey 11-27-2014 03:47 PM

khomo to michlin energy saver swap
 
i have over 6000 miles since the swap from a set of very bald kohmos (tire cords showing on two of them) so extremly worn out. i expected a drop in mileage from all i read about installing a brand new set of tires. didnt happen! from the first tank till present absolutely no drop. i think they might be helping just a little. i inflated both kohmos and michilens to 50 psi. after a few tens of thousands of miles the proof will be in the fuel logs i guess.

2000mc 11-28-2014 04:18 AM

Do you know what model kumho's were on it before?
I always like hearing tire feedback from those of you running higher mpgs where tire differences should show up more readily

Baltothewolf 11-28-2014 04:44 AM

Well, when I went from my 185/65R14 to 165/65R14 I went up 8mpg on the low side, and 15 on the high side. Tires make a huge, huge difference in mileage. Weight and RR I think play the biggest role, more so then actual tire size.

Edit: An example today, round trip going to work, on a good day when I hit all green lights I used get 51mpg max. Today, I got 54.7 and I wasn't even trying, hit most red lights and stopped to get something to eat.

oldtamiyaphile 11-28-2014 06:51 AM

I haven't used them recently, but at one point I had three cars on Kumho's (all dealer fitted) and they were all rubbish and frankly downright dangerous in the wet.

Not surprised that new Michellins beat/match them out of the box.

ksa8907 11-28-2014 10:09 AM

Quote:

Originally Posted by Baltothewolf (Post 457409)
Well, when I went from my 185/65R14 to 165/65R14 I went up 8mpg on the low side, and 15 on the high side. Tires make a huge, huge difference in mileage. Weight and RR I think play the biggest role, more so then actual tire size.

Edit: An example today, round trip going to work, on a good day when I hit all green lights I used get 51mpg max. Today, I got 54.7 and I wasn't even trying, hit most red lights and stopped to get something to eat.

Are you correcting for the size difference? 10.8% reduction in actual miles driven.

moonmonkey 11-28-2014 11:33 PM

sorry 2000 , i dont remember the model of the kumhos, they were on the car from the dealership, they were ok tires as far as traction and wear , i got over 50 k out of them. but i love these energy saver a/s so far, ill post about them after a few more tens of thousands. of miles.

moonmonkey 09-26-2015 09:03 PM

30k on michelin energy savers
 
ok i now have 30000 miles on the michilen energy saver a/s tires. i have seen a slight uptick in mpg's. But not the 3 or 4 mpg the tire articles say. i figure i am getting between one and two more mpg. But the tires are great! quiet,comfortable, and they still look new! no real noticable tread wear. after 30k miles, i will buy a new set of them if the car lasts that long.

CapriRacer 09-27-2015 09:10 AM

Quote:

Originally Posted by Baltothewolf (Post 457409)
Well, when I went from my 185/65R14 to 165/65R14 .......

Is this on your Mustang? If so, this could be dangerous. Overloaded tires have been known to fail. Watch them very closely. It takes only a couple hundred miles between the first signs of a tread separation to a catastrophic failure.

First signs = bulges or a vibration.

Catastrophic failure = the tread and top belt come off, damaging the fender area, sometimes losing inflation, and the vehicle could go out of control! People have been killed when a tire fails like this.

user removed 09-27-2015 09:21 AM

Those tires would be on the 1st gen Insight. OE Re92s in 165x65x14 on the Insight bumped the mpg by 7, almost exactly the opposite of what I experienced on my 1st gen VX when I replaced the original tires.

regards
mech

cowmeat 09-27-2015 09:47 AM

My old Insight Turtle (Dr. Horrible in its new life under my son's ownership) has Michelin Energy Savers on it, and my new Insight Ron Burgundy has OEM Potenza RE92s, and I honestly don't see a difference in mpg, feel, etc . . . . . and since my son and I keep swapping places in the top ten Hybrid slots, I don't think the tires do as much as some people claim, unless maybe they're swapping some off-size for OEM.


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