My 05 RL does not "coast" .... Does your RL "coast" ???
07-13-2012, 06:14 PM
#41
The problem isn't that the car doesn't speed up down a hill. The problem is that the RL slows down when descending all but the most steep grades. I should not have to press the gas or the brake to keep a constant speed down a hill. I imagine whatever is the reason is also what keeps me at a 19-20 mpg average. 
+1
07-13-2012, 06:23 PM
#42
Let this noob clarify your auto-technotalk ....
so then from what getakey is saying I should be able to start going down hill - get up to 60 with the gas pedal - release the pedal - and the car will attempt to stay at 60 - regardless of if I have cruise control on?
And basically the engine is doing this to prevent an outside force from moving it potentially faster (for whatever reason)?
...and from earlier I really shouldn't let it coast in neutral for the same reason the car should not be towed but instead moved on a flatbed. ?
so then from what getakey is saying I should be able to start going down hill - get up to 60 with the gas pedal - release the pedal - and the car will attempt to stay at 60 - regardless of if I have cruise control on?
And basically the engine is doing this to prevent an outside force from moving it potentially faster (for whatever reason)?
...and from earlier I really shouldn't let it coast in neutral for the same reason the car should not be towed but instead moved on a flatbed. ?
07-13-2012, 06:30 PM
#43
^ sort of
without cruise control, the car doesn't have the ability to keep you at 60
If it is a steep hill, you will probably speed up. If its not a steep hill, you will probably slow down. Find just the right hill, and you might stay at 60
without cruise control, the car doesn't have the ability to keep you at 60
If it is a steep hill, you will probably speed up. If its not a steep hill, you will probably slow down. Find just the right hill, and you might stay at 60
07-13-2012, 08:28 PM
#44
Senior Moderator
I think what he is saying is that the car will attempt to keep you from accelerating, but it should not neccessarily slow you down. The fact that it slows you down is due to excessive resistances in the drive train IMO.
As for the nuetral coast hurting the tranny, I call
. The service manual also says a non-Acura brake fluid will hurt the car, but we all know that isn't true. If the car is running, any cooling system designed to protect the car is going to do it's job, even in neutral.
As for the nuetral coast hurting the tranny, I call
. The service manual also says a non-Acura brake fluid will hurt the car, but we all know that isn't true. If the car is running, any cooling system designed to protect the car is going to do it's job, even in neutral.
09-28-2013, 07:40 PM
#45
UPDATE:
Since the recall in April of this year that took me until September to get done the car now does indeed "coast" more like I expect a car to coast.
The problem is I did the real differential fluid along with the recall so I don't know if it was the recall or the fluid that changed it. I'm thinking recall.
Since the recall in April of this year that took me until September to get done the car now does indeed "coast" more like I expect a car to coast.
The problem is I did the real differential fluid along with the recall so I don't know if it was the recall or the fluid that changed it. I'm thinking recall.
10-09-2013, 02:01 PM
#46
What was the recall about? I just got an 06 RL with 64K miles in September... so I assume the previous owner took care of the recall. I noticed this car doesn't coast as well as my 93 Acura Legend... I am going to do the differential fluid next week though. I will see if I noticed a difference after that.
10-23-2013, 12:34 PM
#47
So I changed my differential fluid. There was Z1 still in there from the previous owner. I put DPSF in and just yesterday I had a nice drive in over the hill from San Jose to Santa Cruz. I didnt really feel a big difference and a few times I definitely felt that the car was coasting slowly still.
10-23-2013, 01:36 PM
#48
Senior Moderator
I am leaning more now toward it having something to do with how it is geared. In any case, the poor cruising seems to be by design.
