My aunt bought this Impala in 2005 from a dealer - mid teens miles
wise, well equipped.
My question is: Is it alright for her to drive the Impala in 3rd gear
She and her husband(who drives it 10% of the time) claim it rolls so
well and so smoothly that if they leave it in Drive they have to ride
the brakes most of the time.
I told them of course it rolls well - it's got cushy touring tires
combined with a V6 with excellent low-end torque and it weighs more
than a Camry or a Ford 500/Taurus.
Any long-term issues with the 3rd gear thing?
I hope not. I find the same effect on my '05 and haveto manually
downshift quite a bit.
however, their "rolls so well and so smoothly" is my "has a POS torque
converter program that allows it to unlock when you don't really want
More RPM on the engine, but around town, it is not a big deal, may even be
preferable for the reasons you mentioned. . On the highway it is just
wasting gas and putting more wear on the engine. On my Buick, it would be
about 500 rpm more at 70 mph. It does tend to roll quite a bit with little
engine braking in fourth.
My other car has a 5 speed and won't shift into high until 40 mph or above.
It does have more engine braking too.
The biggest negative will be reduced fuel economy. At legal speeds it
isn't going to hurt anything. The fourth gear is an overdrive gear.
For decades cars didn't have such a gear.
That said, it's a dumb idea. Just use the brakes when needed.
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