N coast vs 'hold the line on 3cylinders' - Page 2 - GreenHybrid

Lewis · #11 (**permalink**) 09-30-2005, 01:32 PM

Quote:

Originally Posted by gonavy

ok, but who's revving the engine in N and why would one do that? If I were in a '69 Mach 1 at a light and something fast looking pulled up next to me I might consider it, bt otherwise??

As I understand Mitaka's post, he raises two possible problems from N coasting;
one is unintentional engine revs in N coasting (say, a long coast, and forgetting it was in N??? and starting to accelerate while still in N???) and possible damage;
the second is that transmission gears do turn when coasting in N, and that the engine at idle may not pump enough oil to properly lube the gears, especially at higher speeds?
My read, and I don't have any hard tech knowledge to confirm or to deny.
Lewis

Mitaka · #12 (**permalink**) 09-30-2005, 06:42 PM

My point is that if you drive in neutral and you don't have proper flow of ATF you will fry your tranny.

xcel · #13 (**permalink**) 10-08-2005, 02:37 PM

Hi GoNavy:

___Sorry I did not get back to your earlier …

Reset FCD w/ 2.1 miles total. 52 mph - 28.4 mpg initial when FAS performed at overpass sign just before a high speed off-ramp and coast into a gas station. Final 50.0 mpg.

Reset FCD w/ 2.1 miles total. 54 mph - 29.9 mpg initial when a Neutral coast was performed at overpass sign just before a high speed off-ramp and coast into a gas station. Final 41.2 mpg.

___Good Luck

___Wayne R. Gerdes
___Waynegerdes@earthlink.net

gonavy · #14 (**permalink**) 10-08-2005, 06:03 PM

Thanks. That pretty definitively closes the book, I think.

philmcneal · #15 (**permalink**) 03-20-2006, 01:08 AM

Quote:

Originally Posted by Lewis

As I understand Mitaka's post, he raises two possible problems from N coasting;
one is unintentional engine revs in N coasting (say, a long coast, and forgetting it was in N??? and starting to accelerate while still in N???) and possible damage;
the second is that transmission gears do turn when coasting in N, and that the engine at idle may not pump enough oil to properly lube the gears, especially at higher speeds?
My read, and I don't have any hard tech knowledge to confirm or to deny.
Lewis

replies like that, make me wonder if I should coast in N with an automatic or not....but its there for a reason right? I mean the car developers wouldn't put it there unless they knew it was useful for something... not something that can kill the car!

So abuse it!