Ford 3000 Gas Engine Oil ?

When purchased, the oil was the usual diesel black and the level was low. It was obvious that it had been neglected.

My concern was oil pressue. The MF 35 has a colored oil pressure gauge and the colors are there to tell you something.

Scale:

Starts at 5psig to 15 Red
15 to 30 Amber
30 to 60 Green

Now to counter some buffs that preach otherwise, if pressure wasn't important, why is it that the largest mfgr of tractors in the world (MF) chose to color their oil pressure gauge.

Initially, I put in my favorite oil as mentioned which brought the pressures up but not good enough. At Idle, after a workout, the press was about 20. Immediately changing to HD 40W upped the press to little over 30 with cold press right at max on the gauge (60). Additionally, since making the last change, I haven't had to add oil.

Mark

I like 15w-40 OTR truck oil like Rotella T. It exceeds all gas and most diesel engine applications for road, indust, farm, mining and all that.

It gives nice oil pressure (which you don't see with your idiot light; but it's still there).

Only time I use something else is when I have a worn out engine that I'm too lazy to overhaul. Then I use HD 40 single grade. (But I bought it that way. Have never lost an engine that I bought new.....maybe it's the oil.)

Probably the best advice it to keep it clean. Then it probably doesn't matter all that much.

Mark