Big Slick

I'm due for a set of tires and can't make up my mind. I was originally looking at either 305/55r20 or 295/60r20, but I'm concerned about losing too much mileage since I do a lot of driving. What are your experiences with these sizes and post your pics if you have them. Thanks!

NC F150

I run 275/60-20 michelins. More efficient, quieter, handle better and do better in the sand than the original pirellis. Also, still a lite duty tire. ( not 10 ply). I thought the fewer plies would allow for better fuel economy and ride.

2007SCrew

35x12.50-20 Federals

So far they're doing well with 8k, and I haven't had any problems with them. I drive around 50 miles a day depending on what I'm doing at work. Most of my driving is around town and it stays between 25-50, and my edge usually reads right at 15mpg. I'm not sure if that's even close to the actual mpg or not, but I haven't cared enough to figure it up manually.

Cordude64

275/65s hurt my milage pretty bad. I get about 11.5 now with my 5.4 liter. Used to get 15.5

Reny28

305x55x20's. Didn't notice a drop in mileage at all form the 285x55x20's I had before. I do 13-14 city driving. 19 give or take on the highway.

DfwScrew

35/12.5/20 toyo m/t

Tradesman

Isn't the factory size for the OEM 20s 275/65R20 in the first place? Or did you originally have the 275/65R18s?

Cordude64

I used to have the 17s and the factory tires on it. Don't remember the size. I just remember they were roughly 27 inches and my current ones are almost 33s.

techrep

iTrader: (1)

305's BFG Mud's on factory

Big Slick

thanks everyone. I won't be doing any towing or heavy hauling, so would the weight savings in an XL rated terra grappler be worth it? it's around 20lbs a tire from what i've read. I was initially looking at the new Toyo Open Country AT2, but the LT305/55 is around 72lbs a piece! I currently have 275/60r20's, but they're a P-rated tire and much lighter