TIRE SIZE/CODE READING
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Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
TIRE SIZE/CODE READING
I just have a few questions. I changed from LT235/85 R16, the oe tire, to LT 265/75 R16.
Am I correct to read the code this way: The LT235/85 is thinner and taller, the distance from rim to tread being 85% of distance from sidewall to sidewall?
If that is so, my new tires would throw off my speedo slightly, would it not? wheels spinning the same speed but covering less ground, right?
My mpg seems to have dropped a bit. Would I notice a change?
Am I correct to read the code this way: The LT235/85 is thinner and taller, the distance from rim to tread being 85% of distance from sidewall to sidewall?
If that is so, my new tires would throw off my speedo slightly, would it not? wheels spinning the same speed but covering less ground, right?
My mpg seems to have dropped a bit. Would I notice a change?
Lead Driver
Joined: Dec 2012
Posts: 7,877
Likes: 49
From: Tennessee
The 265 is actually a bit taller than a 235 . That is the height aspect . 85 to 65 is the width aspect . And yes , it may throw off your spedo a bit . So , your mileage accounts will not be accurate .
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
The new tire size is about 1-1.5" wider (+/-) in both section and tread width.
But it's only about a tenth of an inch taller, your speedo won't even notice that slight fraction of a difference.
But it's only about a tenth of an inch taller, your speedo won't even notice that slight fraction of a difference.
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