Hey all my neighbor asked me to help him disk because his tractor broke, I have some long steep slopes I have to go up. How long would you say would be acceptable with having no rear engine seals in the D2's? 

Hi It was something we never worried about when we were working the steep hill country in Nth Canterbury NZ just got on and did the jobworking 30degree slopes in 1st gear uphill for 150 200 yds always kekt the sumpfull and we would either throw out or burn up to a pint a day and when I say 1st gear going up these slopes you had to keep pulling the clutches or you would get bogged I would have no worries about it we always had the flywheel housing bung out never used in water so didnt know if the oil was seeping out or not its getting steep when the oil runs out the breather

Lot of orchards cultivated up and down slope here in the old days. Never heard any stories of loosing engines from from running out of oil by it running out going up steep. But my person experience is all D6.

The only oil loss I ever had was angling up as steep as the D6 would go with out spinning or sliding. Got the top track on a big rock (no traction at all) the bottom side was spinning and kicking dirt out fast. As I hit clutch a big glug came out the engine breather on the low side back of engine. To busy worrying about other things to look at oil pressure gauge. Backed out of the whole, turned down hill, got to flatter spot had psi and needed about a gallon to get back to full. Just because some of this ground has been farmed for 60 years doesn't mean it should be. In this case it was running out of top soil. That walnut orchard has since been bull dozed to make a vineyard. So now some untrained Hispanic is trying to get over it with Fiat/ New Holland crawler no doubt. Probably as sidling as I have ever been.

  Thanks all for the advice! I have to get up a few small slopes, two being river banks and two being hills basically. I have to go up and then I will be in the field and no slopes it’s basically just going to and from. I’ll have to check it by the plug as it’s an orchard model and the fuel tanks in the way! Thanks for all the advice, I’d hate to seize the tractor.