Re: Toyo M177 correct PSI Reply #25 – September 16, 2022, 12:18:37 pm As did I . My prior chart went to 70PSI for the H rated fronts, I ran at 75 cold. Drove poorly and cost .5 MPG. I went back to 9R , OE size and now run the front at 94cold . Steers much better, rides a tiny bit harder, may have picked up a little MPG. Next year the H rated rears will have timed out and they will also be 9R, run at 92PSI . instaed of the current 85 on the H tires. Quote Selected
Re: Toyo M177 correct PSI Reply #26 – September 16, 2022, 12:23:29 pm We need to be a little careful here, as there are comparisons between different tires and vastly different weight coaches. Quote Selected 1 Likes
Re: Toyo M177 correct PSI Reply #27 – September 16, 2022, 12:45:54 pm Quote from: wolfe10 – September 16, 2022, 12:23:29 pmWe need to be a little careful here, as there are comparisons between different tires and vastly different weight coaches.And the odd thing is that Toyo's load/inflation chart only differentiates inflation data by tire size "FULL STOP" not the tire models within the same size range. So per the Toyo chart. My H rated M137's have the identical inflation schedule as Elliott's H rated M177's. Quote Selected
Re: Toyo M177 correct PSI Reply #28 – September 16, 2022, 02:14:13 pm Quote from: bigdog – September 16, 2022, 12:45:54 pmAnd the odd thing is that Toyo's load/inflation chart only differentiates inflation data by tire size "FULL STOP" not the tire models within the same size range. So per the Toyo chart. My H rated M137's have the identical inflation schedule as Elliott's H rated M177's. One might assume that the load rating for a steer tire and an all position tire may be at least slightly different, as would a drive tire. Quote Selected
Re: Toyo M177 correct PSI Reply #29 – September 16, 2022, 03:14:52 pm Quote from: FourTravelers – September 16, 2022, 02:14:13 pmOne might assume that the load rating for a steer tire and an all position tire may be at least slightly different, as would a drive tire. I kind of get it that as most of the class 8 OTR style truck tires generally carry the same weight given DOT weight regs. That all within the same size range would be built to that requirement. My beef all along has been that in the Toyo chart. Toyo combined two different H rated carcasses. one rated to 120psi and one 125psi then also added in the G rated carcass for good measure. Which of course creates a possible point of confusion in just what pressure ones H rated tire should be using as three differing carcass builds and two load ratings are combined into two lines.All this could have been made very clear to the end user by adding ONE additional line to separate the three carcass builds for the 295/75R22.5 that Toyo makes. Quote Selected 3 Likes
Re: Toyo M177 correct PSI Reply #30 – September 16, 2022, 05:09:51 pm Quote from: bigdog – September 16, 2022, 03:14:52 pm My beef all along has been that in the Toyo chart. Toyo combined two different H rated carcasses. one rated to 120psi and one 125psi then also added in the G rated carcass for good measure. Yes, and they also added the "F" rating in the same line on the 120 psi tire. Quote Selected
Re: Toyo M177 correct PSI Reply #31 – September 16, 2022, 08:02:14 pm Quote from: FourTravelers – September 16, 2022, 05:09:51 pm Yes, and they also added the "F" rating in the same line on the 120 psi tire. Good Lord almighty Justin!! Well there you go. I've seen that chart many, many times and that escaped me. Which shows that Toyo chart is utter rubbish and can easily mislead folks to the incorrect inflation values. That's actually kind of scary. Quote Selected 2 Likes
Topic: Toyo M177 correct PSI