I noticed the longer warranty as well. While 3rd year is major parts only, that is one year longer for the 4500P. Though, it appears residential is 3 years either way but with all things, that may not include the engine. My luck is the part the breaks is somehow not covered.
The dealer i'm working doesn't push either 4500P or 4500Z any more than the other believes the 25% better fuel consumption specified for 4500P at 1.2 gal/hr, vs the 4500Z 1.5 gal/hr is on the conservative end. For less taxing work loads it could be as high as 40% better.
--Scott
The dealer i'm working doesn't push either 4500P or 4500Z any more than the other believes the 25% better fuel consumption specified for 4500P at 1.2 gal/hr, vs the 4500Z 1.5 gal/hr is on the conservative end. For less taxing work loads it could be as high as 40% better.
--Scott