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Tinker Master
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I agree with boyscout on the engine performance.. A larger engine will burn more fuel and there are many other reasons one particular engine will use more gas than another. It should not be a huge difference though. If it is a tune-up is in order. It could be as simple as one engine is governed slower than the other.

Power consumption by a hydro tranny is a bit more due to the power loss in the energy transfer. You are pumping oil into and out of pumps and loose a bit in that action and also the extra equipment that is moving also robs power. Kinda takes me back to physics class.. :spamani: But the deal with the hydro is that the pump is always a-pumpin' whether or not the tractor is actually moving so it uses more power (hence fuel) there also..

Just thoughts on a Sunday afternoon.. :flipping_flapjacks:
 
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