For those owner operators that haul with an 18-speed gear box,
do you notice anything really different, money wise in the performance
of your rig? I mean, fuel savings, easier hauling, better gear selections
for various conditions. To me, it just seems like a lot of gear shifting
and motions. To qualify myself, the highest box I had, was 13, and
that was plenty, for FAK, dry bulk and hauling stone on flats.
18 Speed
Discussion in 'Ask An Owner Operator' started by johnsonbar502, Jan 16, 2022.
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You don’t have to split every gear, but it’s there if you need it.
Oxbow, ProfessionalNoticer, Opendeckin and 10 others Thank this. -
They really shine in a rock truck or log truck. Anything heavy or off highway and the 18spd is what I prefer.
I was told that they shift best when the shifter scrapes the roof though...Keepforgettingmypassword, Speed_Drums, Chieftains and 8 others Thank this. -
They really shine in OTR when you sell. I can definitely see their value in steep terrain
Keepforgettingmypassword and Coffey Thank this. -
I’m not an owner op but I drive a truck with an 18. I don’t keep track of fuel
mileage probably as well as I should admittedly, but I can’t tell much if any of a difference between the 18 speed and 13 and 10’s that I’ve been assigned in the past. I do a lot of off road driving and county road hopping and the extra gears are sometimes advantageous. Other than that, out on the highway I just split the top 2 holes.Keepforgettingmypassword, Speed_Drums, Coffey and 1 other person Thank this. -
I built my 2015 389 Glider following the once often used motto of “Gear fast and run slow”. I went with an 18speed and 2:64 ratio so that I could run in direct drive, (16) the most fuel efficient gearing position the majority of the time up to 65 or so. When I run 70 or so I run in single overdrive(17). Seldom do I use 18 but it is there if I run out west and need the speed. Many people may not need an 18 speed to operate just as efficiently. It works well for my operation, but a 13 speed likely would work nearly as well.
Last Call, dirthaller and Opendeckin Thank this. -
Its all about options. Most of the time I just put it in high split and drive it like a 9 speed.
Keepforgettingmypassword, Speed_Drums, Cat sdp and 5 others Thank this. -
I had an 18 speed in the 249,000# pump truck I use to drive. I drove it like a 9 speed, and rarely hit the first 3 gears. That being said my 10 speed would be better with a splitter on 10th.
Keepforgettingmypassword and Dave1837 Thank this. -
Ok like my 18 for versatility, I like to roll from a stop loaded or mty in deep reduction low. easy on clutch and drive train. Versus the clowns who take off in 3 rd loaded and slip the clutch. I can drive it like a 9,13, 18
Really like low deep when rolling thru dirt lots of bomb crater parking lots. Roll nice and slow and not stir up dust.Oxbow, Derailed, Brettj3876 and 1 other person Thank this. -
Speed_Drums, Oxbow and Speedy356 Thank this.
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