Hiya WillanDi & welcome to the forum
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the figures you're giving there would seem about right to me, maybe a little heavy but only by 1 or 2 mpg. I would have thought you'd struggle to get much over 23 on a very steady motorway run with not many hills in a bus like that. It's a fair lump to be pulling about.
I have the 2.3JTD in my Capri, & it's only a 3400kg chassis. On a run I get about 29mpg, although people swear you can get 34 out of 'em, not the way I drive you can't!!! Then again, I only do about 65mph, but that's on country roads as well as motorways so it's a constant speed!
Edit: remember it's easy in something this heavy to put your right boot further down than it needs to be to maintain the speed, using more fuel in the process
the figures you're giving there would seem about right to me, maybe a little heavy but only by 1 or 2 mpg. I would have thought you'd struggle to get much over 23 on a very steady motorway run with not many hills in a bus like that. It's a fair lump to be pulling about.
I have the 2.3JTD in my Capri, & it's only a 3400kg chassis. On a run I get about 29mpg, although people swear you can get 34 out of 'em, not the way I drive you can't!!! Then again, I only do about 65mph, but that's on country roads as well as motorways so it's a constant speed!
Edit: remember it's easy in something this heavy to put your right boot further down than it needs to be to maintain the speed, using more fuel in the process