An 18' bowrider w/ trailer, fuel and everything is going to weigh in at
about 3500 lbs (could be 4000 if you have a tandum axle trailer and larger
fuel tank).
Having said that, you want a vehicle rated for 5000 lbs towing or more to be
able to maintain speed on the interstate w/ any kind of a hill.
Having said that, most 6 cyliner vehicles are rated at 4500 or so (maybe
5000). The V8 will always be a better choice.

I just purchased a new Trail Blazer Extended version w/ the inline 6 and it
is rated for 4900 lbs but won't get the job done if trying to run 70 on the
interstate w/ a boat this size. Struggles a little bit w/ my father-in-laws
16' aluminum bass boat that probable weights 2500 (definetly under 3000)
trailer and all. Would hate to think I had to tow 4000 lbs w/ it for any
kind of real distance.

--
Tony
my boats and autos - http://t.thomas.home.mchsi.com


"Jesse Dinkin" wrote in message
...
I curious what people use to tow their boats and whether they are
satisfied
with the way it goes....what size boat vs what size vehicle?????.....do I
need an 8 cylinder like a friend said??????....I have a 18ft bowrider
which
I presently keep at a marina but my wife thinks she may want to explore
other water options..........