DonTom
Well-known member
Sure, but don't you think you have better control over it with your foot?I would agree that you should never allow a transmission hunt back and forth but that can happen in or out of cruise.
-Don- Crescent City, CA
Sure, but don't you think you have better control over it with your foot?I would agree that you should never allow a transmission hunt back and forth but that can happen in or out of cruise.
I have found that good control requires the use of the gear shift and the brain as well as one's foot. If the transmission is hunting it is time to get out of D and find a gear to stay in. If that only means no OD, then it might even be OK in cruise, but those decisions are where the brain comes in. With any modern vehicle that has a tach it is very easy to know what is happening.Sure, but don't you think you have better control over it with your foot?
I think that he advocates use of one's brain too. I stand by my last post.said Stephen Leroux, automotive professor at Centennial College in Toronto."
Well if what he said was true over half the auto transmission in the country would need to be replaced or rebuilt next year. When that happens I will believe him.""Using cruise control while driving through hilly terrain could cause the system to force multiple transmission shifts which could lead to overheating of the transmission fluid and premature component wear," said Stephen Leroux, automotive professor at Centennial College in Toronto."
See here.
-Don- Crescent City, CA
Doesn't work like that. Perhaps many trannys last less than 100K miles for that reason which would normally last 150K miles or whatever. Who would notice the difference? Just because you cannot notice the difference in how long your tranny lasts doesn't mean there is no difference.Well if what he said was true over half the auto transmission in the country would need to be replaced or rebuilt next year. When that happens I will believe him.
How many trannys have to be replaced with less than 150K? What you hear about the CVT transmissions is really not true. I have a lot of customers with them that have held up very well.Doesn't work like that. Perhaps many trannys last less than 100K miles for that reason which would normally last 150K miles or whatever. Who would notice the difference? Just because you cannot notice the difference in how long your tranny lasts doesn't mean there is no difference.
BTW, the same goes for using OD in the hills. It can cause too much shifting.
Probably it's all okay with CVT's but I hear they never last long anyway. I have never owned a vehicle with a CVT so I cannot say one way or the other if it causes any issues, but probably not, as there is not real gear changing, just a belt moving around, IIRC.
-Don- Crescent City, CA
Oh, so that is it. You're in the tranny business so the more failures you see the better for your business!I have a lot of customers
Nice try but I am in the tire business but I talk to my customers about their vehicles. I appreciate you calling me a crook.Oh, so that is it. You're in the tranny business so the more failures you see the better for your business!
-Don- Crescent City, CA
Actually I don't think you would. Can you keep anywhere near a steady speed on the highway without cruise than with it?Sure, but don't you think you have better control over it with your foot?
-Don- Crescent City, CA
A steady speed isn't the issue. Excessive shifting is the issue. And we can control that better with our accelerator pedal.Can you keep anywhere near a steady speed
How is it going to shift more when the vehicle is automatically keeping a steady speed?A steady speed isn't the issue. Excessive shifting is the issue. And we can control that better with our accelerator pedal.
The cruise control trying to keep a steady speed IS the issue as it often does that by auto-shifting and that is what we should be trying to reduce.
-Don- Crescent City, CA
In the hills? A lot! That is how it keeps the steady speed when the engine doesn't have the power for the higher gear in the hills.How is it going to shift more when the vehicle is automatically keeping a steady speed?
We will have to agree to disagree on this one. I have used cruise in some pretty hilly areas and did not feel the vehicle shift any more than it would have if I was not using cruise control. I have talked to mechanics about vehicles with known transmission issues and not one of them have ever said that it was from people using cruise control on hills.In the hills? A lot! That is how it keeps the steady speed when the engine doesn't have the power for the higher gear in the hills.
-Don- Crescent City, CA
If you're modulating the gas to hold a steady speed then this is plausible, because your foot is acting the same as cruise would. The premise of the discussion though is to *not* mimic cruise, letting the speed move up and down and staying within the power limits of the current gear so downshifting is not required.did not feel the vehicle shift any more than it would have if I was not using cruise control.
And by watching the tach & gearshift to keep in the power range of the engine as well as the foot and the brain. Some people need to read the owner's manual of their RV chassis.The premise of the discussion though is to *not* mimic cruise, letting the speed move up and down and staying within the power limits of the current gear so downshifting is not required.
I think of "hills" as between my Auburn house (1.4K' elevation) up to Donner Summit (7,240' elevation). I will only use a cruise control in my EVs on those hills.steep grades I would agree but no hills at all??