Retired Allison Transmission Fluids Engineer

[Retired Allison Transmission Fluids Engineer]

Oddly a friend (who bought my old 2004 Itasca Meridian) with a Cat C7 and a mh3000 transmission used his shift pad to find his trans fluid level to read 7 quarts low. (Dip stick looked right).   After adding 4 quarts and continuing on his way to his camp ground it now reads 8 quarts low. 

The trans shows no sign of leaks. Drives and shifts great.  - in fact he said it shifted a little smoother after adding the fluid. 

Can anyone share what symptoms you would see / feel from over filling?   It has run well for the last 5k miles - 

It just doesn't add up that the shift pad has provided such different readings.  Is there a calibration required?

 

Thanks!

[Gasser Game Changer For Me!]

On 11/19/2016 at 10:38 AM, manholt said:

OK, so you got an ISL 2007...tells me nothing.  Make, Model of coach and HP of engine would help!

2007 allegro bus quad slide qsp. 400hp

[Gasser Game Changer For Me!]

Five, the last leg of my trip is predominately 55-60 and I got 7.4 .... certainly a cost to move a wall of air. 

 

[Gasser Game Changer For Me!]

On 11/18/2016 at 6:11 AM, jleamont said:

Never! they always pass me like I'm standing still, even at 65.

99% of the time as soon as my coach shifts into 6th gear I either set the cruise or watch the speedometer and keep it under 65. 

1st post - so hello everyone. 

As the speed conversation goes, I just returned from a 900 i95 trip and did a test on speed / mileage.  

On my 07 ISL Cummins I used 72-73 on the way and 67-68 on the trip back. Cruise control any time possible, same route. Low amount of traffic either way. Mileage went from 6.4 to 7.1.  Just my 2 cents. 

Mike