Long haul truck engines, like 11+ gallons on a 12L engine = a little < 1 gal/liter of engine displacement.Long haul truck engines measure oil capacity in gallons (like 11+ gallons on a 12L engine) and have oil coolers. Of course they change their oil every 20K miles or so.
FJR, 1+ gallon on a 1.3L engine = a little < one gal/liter of engine displacement.
FJRs have oil-coolers.
same -- same.... :blink:
Ah well... as you see from my profile I do not own an FJR... and my bike is 2.3L for 650cc, with no oil cooler.
Even that said the truck does not use the engine oil to lubricate the transmission. And it red lines at 1800 rpm. So there are a few differences.