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Re: [A/S] GM 454 motor
I had a 1992 Suburban 1500 1/2 ton with a 350 engine.
It was woefully underpowered. I tow a 1978 28' A/S
and although it towed well I always felt that I needed
more power to keep up with traffic on the interstate.
I would get around 15 MPG without the trailer and 9-10
MPG towing the A/S. I also had to watch the engine
temp on that vehicle. I finally damaged the
transmission on it from towing (I did not tow in
overdrive). I bought a 1999 2500 3/4 ton Suburban
this fall with a 454 engine and a 4:10 rear end. This
truck is a puller. I have not had the opportunity to
pull the A/S very far with this truck but the few
miles I pulled it was almost effortless. The engine
temp remained cool. It is so much better in the snow
than the old 1/2 ton. I find that rarely do I need
the 4 wheel drive in the snow. The downside is the
fuel milage. I average without the trailer about
10-11 MPG. My engine runs too cool at the moment and
I think that when I replace the thermostat and it runs
a bit warmer that my milage should improve a bit.
Other than the milage I am thrilled with this vehicle.
I would have prefered a diesel but they are hard to
come by without traveling out of state to get one. I
believe that there is a dealer in Florida that
specializes in suburban diesels. Hope this helps.
Thomas #8848