18 vs 20 inch tires - TundraTalk.net

Lone Star Outfitter · 04-01-2008, 07:08 PM

My 4x4 Crew Max truck will come with 18 inch tires. Is there any advantages besides looks for going to a 20 inch tire? Do you lose any MPG with the bigger tire?

thanks

SybErkRimInAL · 04-01-2008, 07:23 PM

The bigger the tire the more gas you'll waste. The size of the rim shouldn't matter. Its the overall diameter of the wheel/tire that counts when it comes to gas milage. Oh yea, and the weight of the wheel/tires matters too. The heavier, the more gas you'll waste.

alreadydead · 04-01-2008, 07:50 PM

The tire with the optional 20 rim is shorter so the total wheel dia is the same, rim weight vs tire weight=small difference. Overall my mileage with 20's is no different than what is regularly being reported here.
Get what you want!

weird22person · 04-01-2008, 08:00 PM

A wider tire will lower the milage as well.

1sicktundra · 04-01-2008, 10:54 PM

if you lift the truck go 20 if not 18's

Deznutjob · 04-01-2008, 11:20 PM

Quote:

Originally Posted by weird22person

A wider tire will lower the milage as well.

A narrower tire will get better mileage, less resistance on the road bro.

08CMAX · 04-02-2008, 12:48 AM

but 20s are saaaaweeeeet! ; )

Deznutjob · 04-02-2008, 11:48 AM

Quote:

Originally Posted by 08CMAX

but 20s are saaaaweeeeet! ; )

Yes they are! I got em but actually if I were to do it over again I would have stayed with 18's. The 20" wheels take away from the tire suspension for the type of offroading my truck is set up for. This is hard on the wheels, berings etc. Some day I may be switching back to 18's.

B07CM · 04-05-2008, 01:02 AM

I put 22-inch wheels with 305/22 R45 tires. It is KILLING my fuel economy. The overall diameter is just a tad more (maybe) if not the same but the wider footprint is probably the culprit. I may swap the tires and go with a 285 to see if that helps. Just to be sure, we put the fatories back on and ran a couple tanks and saw an immediate and noticeable improvement. Conversely, when I put the big wheels back on it drops.

Deznutjob · 04-05-2008, 01:16 AM

Quote:

Originally Posted by B07CM

I put 22-inch wheels with 305/22 R45 tires. It is KILLING my fuel economy. The overall diameter is just a tad more (maybe) if not the same but the wider footprint is probably the culprit. I may swap the tires and go with a 285 to see if that helps. Just to be sure, we put the fatories back on and ran a couple tanks and saw an immediate and noticeable improvement. Conversely, when I put the big wheels back on it drops.

Quit teasin us bro and post some pics, quick!

YB929RR · 04-05-2008, 09:56 AM

I like my 20's (2007 S-XP).

I bought it because it has a different look.

scoobyru · 04-05-2008, 10:13 AM

20s handle better than 18s.

sxd45 · 04-05-2008, 11:58 AM

Quote:

Originally Posted by scoobyru

20s handle better than 18s.

Where did you get that info? When I put 20's on my last truck I seemed to lose turning radius.

scoobyru · 04-05-2008, 01:32 PM

I was talking about high speed handling. Had 16s on a 3/4 ton 'burb and switched to 20s and it handled much better at speed. I don't know about turning radius, though. The double cab has a long wheel base to begin with, so it isn't going to parallel park like a Mini.

2008_CrewMax · 04-05-2008, 01:37 PM

did you buy your truck to get good gas mileage?

didnt think so.... do what you think looks best

04-01-2008, 07:08 PM	#1 (permalink)
Lone Star Outfitter Junior Member Join Date: Apr 2008 Posts: 15	18 vs 20 inch tires My 4x4 Crew Max truck will come with 18 inch tires. Is there any advantages besides looks for going to a 20 inch tire? Do you lose any MPG with the bigger tire? thanks

04-01-2008, 07:23 PM	#2 (permalink)
SybErkRimInAL Senior Member Join Date: Aug 2007 Location: Palm Springs, CA Posts: 1,642	The bigger the tire the more gas you'll waste. The size of the rim shouldn't matter. Its the overall diameter of the wheel/tire that counts when it comes to gas milage. Oh yea, and the weight of the wheel/tires matters too. The heavier, the more gas you'll waste. __________________ Black 08 CM Post purchase Mods/Upgrades (click on item to view pic) AFE CAI Borla Dual Catback Projection Halo Headlights

04-01-2008, 08:00 PM	#4 (permalink)
weird22person Senior Member Join Date: Feb 2008 Location: Massachusetts Posts: 105	A wider tire will lower the milage as well. __________________ 2004 Tundra SR5 4x4 in Natural White -Silverstar Ultra Hi/Lows, and Fogs

04-02-2008, 12:48 AM	#7 (permalink)
08CMAX Senior Member Join Date: Feb 2008 Location: Redding, California Posts: 737	but 20s are saaaaweeeeet! ; ) __________________ 08CMAX I.B.T.O. C.M.T.T.F.F. 2008 Crewmax SR5 Billet Grill 20" ProComp Wheels Toyo Open Country 35s 6" ProComp Stage 2 Lift TRD Air Intake TRD Dual Exhaust TRD Aluminum Shifter

04-05-2008, 09:56 AM	#11 (permalink)
YB929RR Member Join Date: Mar 2008 Location: Navarre, Florida. (Pensacola) Posts: 43	I like my 20's (2007 S-XP). I bought it because it has a different look. __________________ 2007 Toyota Tundra X-SP, DC, Super White Door Handles Black Leather w/carbon fiber trim. 20" BBS wheels 5.7L V8 6 spd. There's Absolutely No Excuse For The Way I'm About To Act!!

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04-01-2008, 07:50 PM	#3 (permalink)
alreadydead Junior Member Join Date: Dec 2007 Posts: 28	The tire with the optional 20 rim is shorter so the total wheel dia is the same, rim weight vs tire weight=small difference. Overall my mileage with 20's is no different than what is regularly being reported here. Get what you want!

04-01-2008, 10:54 PM	#5 (permalink)
1sicktundra Senior Member Join Date: Sep 2007 Location: Georgia Posts: 884	if you lift the truck go 20 if not 18's

04-05-2008, 01:02 AM	#9 (permalink)
B07CM Junior Member Join Date: Apr 2008 Posts: 26	I put 22-inch wheels with 305/22 R45 tires. It is KILLING my fuel economy. The overall diameter is just a tad more (maybe) if not the same but the wider footprint is probably the culprit. I may swap the tires and go with a 285 to see if that helps. Just to be sure, we put the fatories back on and ran a couple tanks and saw an immediate and noticeable improvement. Conversely, when I put the big wheels back on it drops.

04-05-2008, 10:13 AM	#12 (permalink)
scoobyru Junior Member Join Date: Mar 2008 Posts: 16	20s handle better than 18s.

04-05-2008, 01:32 PM	#14 (permalink)
scoobyru Junior Member Join Date: Mar 2008 Posts: 16	I was talking about high speed handling. Had 16s on a 3/4 ton 'burb and switched to 20s and it handled much better at speed. I don't know about turning radius, though. The double cab has a long wheel base to begin with, so it isn't going to parallel park like a Mini.

04-05-2008, 01:37 PM	#15 (permalink)
2008_CrewMax Senior Member Join Date: Mar 2008 Location: Southern California Posts: 4,150	did you buy your truck to get good gas mileage? didnt think so.... do what you think looks best __________________ White Tundra Club Member #2

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