If I will damage the transmission driving with the overdrive on, until repaired ASAP.

[Administrator]

Keep your maximum speed to no more than 60mph, and the only
thing that will suffer is the fuel economy. I spent several months
driving a 240 without O/D, and I generally went 50-55mph to keep
the fuel consumption at about 23mpg. Just remember: the 140 series
cars had essentially the same gearing and no O/D on the automatics.
It was only an option on the standards, and you had to get used to
running the engines at 3500RPM going 55-60...

The OD on my 240 Turbo was out for about 18 months several years ago and
guess what it did for my mileage? Absolutely nothing. It was still
arouond 22 overall.

 

[James Sweet]

The OD on my 240 Turbo was out for about 18 months several years ago and
guess what it did for my mileage? Absolutely nothing. It was still
arouond 22 overall.

Mine dropped to about 17 mpg, from the 25 I normally got. That's almost
entirely highway driving, cruising at 70-80 mph.

 

[Aawara Chowdhury]

In <StVHf.55587$_D1.33954@trnddc03>,

Mine dropped to about 17 mpg, from the 25 I normally got. That's almost
entirely highway driving, cruising at 70-80 mph.

That's in line with what I observed when I lost the OD on my 240. Dropped
from about 23 to just over 15 (mostly city, some hwy).

AC