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2016 Subaru Outback 2" ADF Lift
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42 Posts
Discussion Starter · #1 ·
I just got a 2016 outback limited. I bought some 17 inch Motegi Racing MR118 and am now looking for tires for them.

I was going to go with the Cooper Discoverer AT3 but am concerned about gas millage. 95% of my driving will be on pavement, but I like the look of the all terrain tires and like the idea of having them when/if I need them.

Would I gain much in fuel economy by going with a tire more suitable for pavement like these Cooper Discoverer HTP



Any other suggestions on tires? I was also considering lifting it 2 inches, again mostly because of the look, but also just in case I ever need it. How much will this reduce my gas millage? More or less that a roof rack? None at all?
 

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(formerly) 03 H6 OBW , (presently) 06 WRX Sportwagon & 2021 Honda CR-V
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18,349 Posts
what is the weight difference between stock vs your ideal rim/tire combo?

rule of thumb...4lbs of rotating mass ~= 1hp.

and that's before figuring areo drag.
 

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2016 Subaru Outback 2" ADF Lift
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42 Posts
Discussion Starter · #3 ·
what is the weight difference between stock vs your ideal rim/tire combo?

rule of thumb...4lbs of rotating mass ~= 1hp.

and that's before figuring areo drag.
That is a good question. I have the stock 18 inch wheels and firestone champion fuel fighter tires at the moment.

after a little more searching i like the Geolander g015 too. Maybe more than the discoverer at3, but I now nothing about tires. I'm just judging my the looks and price.
 

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OBW H6 VDC, Tribeca, XT6
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12,385 Posts
In general I haven't noticed a 2" lift and marginally larger tires affecting anything. But if you get tires not known for mileage - knobby, aggressive offroad - I doubt they're going to help.

Specifically, weight of vehicle, driving style, driving environment, highway, city, tires, lift, bars, vehicle, mountains, flat, hot, cold - there's too many variables to accurately assess gas mileage impact.
 

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(formerly) 03 H6 OBW , (presently) 06 WRX Sportwagon & 2021 Honda CR-V
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18,349 Posts
there's a good amount of tire reviews at TireRack.com , maybe at Discount Tire's site too.

hopefully some off-road type folks will respond. Or, try your question at ultimatesubaru.org .

in general, increased mass is detrimental due to inertia so, it's very bad on stop&go driving.

aero drag starts becoming a serious issue after 'about' 50 mph or so . It increases as a square of the velocity so, if you are at highway speeds a lot, that could be an issue.

dunno if anyone can say how much of a hit to mpg you will take.
 
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