Thread: Tow/Haul button and real life experience

Quote: Originally Posted by tundra357 Just curious -- what kind of tires are on the trailer you are towing at 79 mph? If you are running "ST" trailer tires, you should be aware that those are rated at 65 mph max; and most experienced drivers keep their speed around 60 mph. Clark, are you sure your an experienced tower? that could be part of the problem?! lol jk phoenix. I wasn't, but I am now! That was a learning...

This is great! Exactly what I was looking for! The engineer written users manual. This helps to make sense of what's happening and make sure that my unfortunate comparisons to my POS Durango I had are insignificant. Thanks again! This is a good read. I will share it with my dad as well, he was along for the ride and reading my owners manual out loud trying to make sense of what the engine was doing, how and why. Thats his automotive...

Quote: Originally Posted by tonyspin Something ain't right with that animal in your sig, Mongo..... I know...........It's only when you squeeze him that he does that with his eyes. Hey what the life expectancy of a guinea piggy anyway.

Quote: Originally Posted by osuart about 1k, i read the manual and it stated to make sure and wait till the break in was over. 500 before you tow and then another 500 minimal towing. if you know ohio it was as flat as kansas and about 55 miles is all. i didnt push it hard at all, i am guessing as i get some more life on it, it will continue to get better. It will get better as it gets more miles on it. You really can't judge much from a...

Clark123456, Just curious -- what kind of tires are on the trailer you are towing at 79 mph? If you are running "ST" trailer tires, you should be aware that those are rated at 65 mph max; and most experienced drivers keep their speed around 60 mph. Also, if those are Goodyear Marathons, you should use your favorite search engine to look for "Goodyear Marathon Failures". It's a real eye-opener...

Scroll down to part that describes the tow haul mode.

[quote=Mongo;354412] Quote: Originally Posted by clark123456 Something ain't right. I have an '07 CM 5.7 towing a 19' travel trailer at an estimated weight of 6K LBS including other gear. I consistently average the following in all-highway but mixed terrain driving (hills & flats) with Tow/Haul active: 9MPG @ 70MPH 11MPG @ 65MPH 11.5MPG @ 60MPH When I'm unloaded I get: 20MPG @ 55MPH 14.5MPG in mixed driving, but...

Just curious -- what kind of tires are on the trailer you are towing at 79 mph? If you are running "ST" trailer tires, you should be aware that those are rated at 65 mph max; and most experienced drivers keep their speed around 60 mph. Clark, are you sure your an experienced tower? that could be part of the problem?! lol jk phoenix.

Tow/haul makes an ENORMOUS difference in the performance of my truck. I couldn;t imagine not using it.

I tow a 33' travel trailer with 2 slides. Weighs about 9K as towed. I use T/H mode all the time when towing. That's what it's there for. Up the hills of NC and down the hills. Let the engine scream and the gas burn. The more horses you got pulling the wagon the more hay you gots to buy. Right? I bought this 5.7 CM because of it's towing capacity and wouldn't trade it for anything else and I've driven them all....