Feb-17-2020 02:14 PM
Mar-04-2020 12:27 PM
Hank85713 wrote:i have Mikes 5 star tune in my c class we just got back from a 2500 mile pulling a 3500lb. car it worked fantastic. went through west tx, on I 10 to az. worked great i would suggest it to enyone who is having shifting issues call 5 star and have them right you a tune. kinda pricey but worth it. more power better millage. i went from 6.8 to 8.5 even got a 9 mpg on flat ground at 65 mph
Tow haul usage is one of the big discussion points just like the question used to be on what oil is 'best'. Yes use it if the vehicle is struggling against the wind, going up a long hill etc, but it really does not enhance fuel econmy as it locks the transmission in the lower gears not the higher fuel efficient ones. Once again its just a big flag for discussions. My class B+ only gets it turned on to pull out of uphill starting points or when I think I need a lower gear to move on. It also gets turned on when HEADWINDS increase and make the trans search to maintain speed. Even in colorado with it turned on the engine runs out of gasa and speed will slow to 35-45 mph on pulls. Lotsa dead throttle also. One recommendation is to get a mikes 5 star tuner for the rig as it does make the engine more civilized when it shifts under load. I have been reading on the new hypertech react throttle optimizer. Havent ordered yet but plan to prior to summer travels. There is another outfit forget who which has come out with a throttle optimizer, but I do know hypertech does put out good products. As to one with key, that is not normal so yes maybe kalif had bugs put in to cause it??
Feb-21-2020 05:54 PM
Hank85713 wrote:
Tow haul usage is one of the big discussion points just like the question used to be on what oil is 'best'. Yes use it if the vehicle is struggling against the wind, going up a long hill etc, but it really does not enhance fuel econmy as it locks the transmission in the lower gears not the higher fuel efficient ones. Once again its just a big flag for discussions. My class B+ only gets it turned on to pull out of uphill starting points or when I think I need a lower gear to move on. It also gets turned on when HEADWINDS increase and make the trans search to maintain speed. Even in colorado with it turned on the engine runs out of gasa and speed will slow to 35-45 mph on pulls. Lotsa dead throttle also. One recommendation is to get a mikes 5 star tuner for the rig as it does make the engine more civilized when it shifts under load. I have been reading on the new hypertech react throttle optimizer. Havent ordered yet but plan to prior to summer travels. There is another outfit forget who which has come out with a throttle optimizer, but I do know hypertech does put out good products. As to one with key, that is not normal so yes maybe kalif had bugs put in to cause it??
Feb-21-2020 10:49 AM
Feb-21-2020 06:46 AM
Feb-20-2020 06:08 PM
Feb-20-2020 04:50 PM
Desert Captain wrote:
"So....I put the trans in Tow-Haul mode right away, every dang time I remember."
Ron, I occasionally forget to engage TH but my Scan Gauge quickly reminds me as the trans fluid temps begin to rise significantly on even slight grades, :S oops forgot again, a push of the button and with TH engaged they quickly fall back to the proper/normal levels.
You do have a Scan Gauge, yes?
As noted above TH especially on an E-450 should be engaged virtually all of the time due to the weight and aerodynamics {or lack thereof}. What the OP described does not sound right and the suggestion to have the dealer reflash the ECM sounds like the way to go.
I have spoken with a couple of dozen folks renting C's and not one was ever given a syllable of instruction on using TH. This tells me two things, one; most of the folks renting them are blissfully ignorant of this function and two, most rental RV are slowly but surely cooking their transmissions, caveat emptor. :E
Feb-19-2020 04:12 PM
Feb-18-2020 06:43 AM
Feb-18-2020 06:27 AM
Desert Captain wrote:
As noted above TH especially on an E-450 should be engaged virtually all of the time due to the weight and aerodynamics {or lack thereof}. What the OP described does not sound right and the suggestion to have the dealer reflash the ECM sounds like the way to go.
I have spoken with a couple of dozen folks renting C's and not one was ever given a syllable of instruction on using TH. This tells me two things, one; most of the folks renting them are blissfully ignorant of this function and two, most rental RV are slowly but surely cooking their transmissions, caveat emptor. :E
Feb-18-2020 05:21 AM
Feb-17-2020 07:00 PM
Feb-17-2020 05:34 PM
Feb-17-2020 02:26 PM