CAT 450HP engine fuel mileage
I have a friend that claims he gets 10.5 MPG at 75 mph in his 2001 450HP Cat 40Ft beaver PT motorhome and his average is 9.5?? I only get 7.5 in my ISL425 and I only drive 63MPH ? Is this believable...
Forum Discussion
tiffinboy wrote:Ivylog wrote:
The Cat 3406 is a great engine. 10 yes, but not at 75. 14.6L geared to run 65 at 1300 rpms in a coach that weighs 34K maybe with a tail wind.
ok never knew his ratio was so much higher than mine.Iam 1650@62
also did not know it was 14.6L engine? that's huge compared to my 8.9
Thanks for the reply
Unless things changed a lot in 2001, our 2000 Patriot Thunder has a C12, not the larger CAT and gets 425 HP from it. According to our Silverleaf, our average fuel economy is ~8.5 mpg with some days as high as ~9 mpg and as low as ~7.5 mpg. Under extreme conditions we have been able to average >10 mpg for an entire day but that is rarely the case.
We weigh ~37,000 pounds with our toad.
