Class A with side radiators.

[Gary RVRoamer]

Back on the subject of side rads, many of the early-mid 2000's Allegro Buses I see have a rear rad rather than side. Maybe depends on the engine option chosen?

The ISL engine usually comes with a side radiator but the ISC is more often equipped with a rear radiator. Although an ISL needs greater cooling than an ISC, I suspect the main reason for this is the price point f the coach rather than technical requirements.

[SteveLevin]

All things pretty equal I'd always go for the side radiator, but outside of that choice (which almost never happens) I wouldn't make it a real consideration.

It's great for the 40 minute alternator change, yes, but if I had to live with a coach I didn't like for the following 3 years...not so great.

Steve

[Mike_Harriet]

Good point. I know from this site, that floorplan is most important factor in choosing. So I won't let rear radiator steer me away from a great coach, but as a gear head I'd should like the side rad!

[336muffin]

Originally Posted by Cat320

All American Coaches have side radiators and most have Aqua Hots.

Not true on the Revolution.

[RVNeophytes2]

Originally Posted by Mike_Harriet

Good point. I know from this site, that floorplan is most important factor in choosing. So I won't let rear radiator steer me away from a great coach, but as a gear head I'd should like the side rad!

Right on. In the last year, I've owned both. We rolled in from a 1200 mile trip just yesterday, I examined the radiator during cleanup. Not a trace of sludge, obstruction. Were this my rear-mounted Fleetwood, a standard chore would've been degreasing and flushing.

Cooling efficiency in our case is up dramatically: the Silver Leaf diagnostics show a 2-3 degree water temp rise, climbing hills in warm weather. As opposed to 30-40F swings, with a rear-mounted radiator whose cooling air first flowed over the hot muffler, with the other RV.

[Cat320]

Originally Posted by 336muffin

Not true on the Revolution.

You might be right about the previous years, but the 2013s have the side radiator.