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Pooh: You cannot hurt the engine by starving it for oil for 2 or 3 seconds so long as the pump does not loose its prime and the pressure comes back up when you level out. Having said that, you can indeed drive on a slope steep enough that the oil will flow away from the pick-up tube, especially if the crankcase is not totally full. The pick-up tube is fixed on all Ns and does not swivel by gravity as does that in some industrial equipment, e.g., bull dozers. Regarding driving on slopes: You cannot walk up (or down) a 60 degree slope, much less drive a tractor either way on one, 4-wheel drive or otherwise. You doubt? Get out the plastic triangles from your high school drafting class or a protractor and look at a 60 degree angle. A thirty degree slope is about all that a 2-wheel drive tractor can negotiate, either up or down. As to slippage: 2-wheel drive tractors will generally slip going down slope on a lesser slope than when going up due to weight transfer. Slipping on a down hill slope is generally more dangerous than slipping when going up hill because once your tires loose traction going down hill gravity will accellerate you quickly and you can easily loose control. If your tires loose traction while going up hill, usually you merely stop. Of course it takes some skill to either get started up hill again or back to the bottom when this happens. Dean
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