I would venture to say that the old rule of thumb for 10 speeds applies to probably 99% of company-spec trucks. I've driven a lot of (on-highway) trucks with ten speed trannys and they were all very similar... sixth gear round the corner, eighth gear in town, ninth gear rural 45mph, tenth on the big road.
What are Mph for each gear 1-10?
Discussion in 'Questions To Truckers From The General Public' started by Magnetron, Jan 7, 2009.
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That's what I do. I'll drop from tenth to sixth if I have to get on a freeway. Using that knowledge you can save yourself some wear a tear by selecting the right gear for the speed. No need to down shift ever gear. Sorry about the slip of TOP SECRET info. -
I was taught to shift up at 1600 and down at 1300 in the upper range, and at 1300 and 1000 respectively in the lower range, and from there, with practice I figured out about which speeds = which gears. I just wish I could convince my hubby that he doesn't have to tach it out to 1800 or higher before he shifts - then we might get our fuel bonus once in a while.
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Dave -
Also, Jinx, I like your sig line.
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Every roadtest I've ever done with a guy that tached it out to shift almost never made the next gear without rubbing or chunking it in. We get alot of OTR drivers who can't downshift at all, take off in the wong gear and have no idea what a clutchbreak is. Everybody misses and rubs now and again but it's not supposed to happen every shift. Also, when you go to put it in gear you should'nt have to force it, that loud clunk and the whole truck moving aren't normal. On a 8ll for instance, Loaded I take off in low and empty I take off in first. Only exceptions are if I'm facing down a good incline I might up it a gear or two and engage once I'm up to road speed for that gear. I don't know what truck driving schools are teaching these days but ####.
Wiseguywireless Thanks this. -
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They are all different. My Frieghtliner 10 is 6th, 20 7th, 30 8th, 40 9th and anything above 50 tenth. Still getting used to down shifting. First truck I have driven with an electronic throttle and its screwing me up.
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