Towing too fast
Cargo Master
Joined: Oct 2005
Posts: 2,084
Likes: 94
From: Stanton, Michigan, USA
Now ^^ that ^^ info re: your Accord is hard for me to believe...But, I've never claimed to know it all nor seen it all. But I'll bite -- so HOW MUCH BETTER fuel mileage does your Accord get at 85 mph versus 55 mph?
BarnieTrk
Senior User
Joined: Jul 2010
Posts: 241
Likes: 1
Anyone ever hear of wind resistance..... (traveling at 80 vs 60 you about double the hp needed to maintain)
How about even Michelin XPS are rated for 75 max (speced)
But hey specs are made to be broken.
I notice 2 mpg difference from 60 to 70 mph.
Now I am going to burn fuel in a ATV so it is not that so much but I have had 2 tires go on me (1 I spotted on a stop, 1 while doing 65
).
To each their own...
How about even Michelin XPS are rated for 75 max (speced)
But hey specs are made to be broken.
I notice 2 mpg difference from 60 to 70 mph.
Now I am going to burn fuel in a ATV so it is not that so much but I have had 2 tires go on me (1 I spotted on a stop, 1 while doing 65
).To each their own...
Mountain Pass
Joined: Mar 2015
Posts: 200
Likes: 1
From: Hillsboro, OR
And knowing that is why they provided the model cars used in the test.
Now ^^ that ^^ info re: your Accord is hard for me to believe...But, I've never claimed to know it all nor seen it all. But I'll bite -- so HOW MUCH BETTER fuel mileage does your Accord get at 85 mph versus 55 mph?
BarnieTrk
Now ^^ that ^^ info re: your Accord is hard for me to believe...But, I've never claimed to know it all nor seen it all. But I'll bite -- so HOW MUCH BETTER fuel mileage does your Accord get at 85 mph versus 55 mph?
BarnieTrk
Modern passenger cars produce power at higher RPMs. Trucks are the opposite. Just have to find the sweet spot on your vehicle.
Mountain Pass
Joined: Mar 2015
Posts: 200
Likes: 1
From: Hillsboro, OR
Anyone ever hear of wind resistance..... (traveling at 80 vs 60 you about double the hp needed to maintain)
How about even Michelin XPS are rated for 75 max (speced)
But hey specs are made to be broken.
I notice 2 mpg difference from 60 to 70 mph.
Now I am going to burn fuel in a ATV so it is not that so much but I have had 2 tires go on me (1 I spotted on a stop, 1 while doing 65 ).
To each their own...
How about even Michelin XPS are rated for 75 max (speced)
But hey specs are made to be broken.
I notice 2 mpg difference from 60 to 70 mph.
Now I am going to burn fuel in a ATV so it is not that so much but I have had 2 tires go on me (1 I spotted on a stop, 1 while doing 65
).To each their own...
Elder User
Joined: Aug 2016
Posts: 521
Likes: 1
A car is 30% less efficient at 80mph vs 55mph. Fact. Even airlines are slowing their planes down just 10mph to SAVE fuel.
Check out this site
Mpg For Speed - Fuel Efficiency Vs. Speed
Hotshot
Joined: Jan 2010
Posts: 10,060
Likes: 491
From: Bristol, TN.
The relationship between speed and mpg was actually track tested when the nationwide 55 mph speed limit was in effect and truckers claimed they got better mileage at higher speeds and was soundly disproved.
Check out this link - Mpg For Speed - Fuel Efficiency Vs. Speed
Steve
Check out this link - Mpg For Speed - Fuel Efficiency Vs. Speed
Steve
Post Fiend
Joined: Jun 2014
Posts: 6,801
Likes: 7
From: DFW, TX-GoldCanyon, AZ
I tow at 65 mph or below. I'm not in a hurry and if others are, I will try to not get in their way.
BTW, Carlisle has new ST tires out with some pretty impressive reviews.
I just bought these for my small enclosed trailer and they are speed rated to 87 MPH as I recall..
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
They have a couple of other higher rated tires than these which are also good for speeds beyond 65 MPH.
BTW, Carlisle has new ST tires out with some pretty impressive reviews.
I just bought these for my small enclosed trailer and they are speed rated to 87 MPH as I recall..
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
They have a couple of other higher rated tires than these which are also good for speeds beyond 65 MPH.
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Brett Foote
Cargo Master
Joined: Oct 2005
Posts: 2,084
Likes: 94
From: Stanton, Michigan, USA
Does anyone here know if there are any states that REQUIRE the use of ST tires on trailers? In other words, outlawing the use of LT tires on a trailer?
I wonder if insurance companies might question upholding a damage claim if it was determined the trailer involved was NOT running ST tires?
BarnieTrk
I wonder if insurance companies might question upholding a damage claim if it was determined the trailer involved was NOT running ST tires?
BarnieTrk
Hotshot
Joined: Jan 2010
Posts: 10,060
Likes: 491
From: Bristol, TN.
Your insurance can not deny payment for anything unless it is written into your contract. My insurance says I am covered towing, period. There are not clauses regarding my trailer of any kind and I am willing to bet there are none in anyone else's contract either. Drive drunk you are covered, drive drugged, you are covered. Use different tires, I doubt it. Why not void coverage for suspension modifications, brake modifications, etc. The list would have to go on forever. This is a none issue. You may well find yourself without coverage after the payoff, but not before.
Steve
Steve
Senior User
Joined: Mar 2016
Posts: 288
Likes: 0
Curious if any manufacturer says a speed you should not exceed? I understand upgrading tires but unless you also go bigger than the bearing themselves are turning faster creating more heat. Is it possible to go too fast for the axle bearings?
Hotshot
Joined: Jan 2010
Posts: 10,060
Likes: 491
From: Bristol, TN.
Manufacturers take no official position I know of regarding speed, but I think bearing failure is more the result of lack of maintenance than speed. Once my bearing come to temperature speed does not seem to affect it, at least in the 60-70 mph range.
Steve
Steve
Post Fiend
Joined: Jun 2014
Posts: 6,801
Likes: 7
From: DFW, TX-GoldCanyon, AZ
Having seen numerous boat and snowmobile trailers with spindles burned up leads me to believe that it's probably not just a maintenance issue - but probably plays a large role in the failures...
When I think of how many of these trailers I have had pass me when I was doing 65-70 and they left me behind like I was chained to the fence - well - I just know those bearings are taking a beating...
Most ST trailer tires are speed limited to 65 MPH. Just recently, there have been some mfgrs come out with higher speed ratings..
When I think of how many of these trailers I have had pass me when I was doing 65-70 and they left me behind like I was chained to the fence - well - I just know those bearings are taking a beating...
Most ST trailer tires are speed limited to 65 MPH. Just recently, there have been some mfgrs come out with higher speed ratings..
Elder User
Joined: Aug 2016
Posts: 521
Likes: 1
Great point! We all do! Bearings hardly ever get the attention needed until they fail unfortunately then it's too late. Take the time to repack/inspect your bearings on all your trailers every year, it will save you in the long run.