John Deer Corn grease --- ugh

[JSeery]

Originally Posted by SofaKing

It doesn't seem like there's much friction but I expect there is significant load during bump-steer events and I am wondering about film strength, replacement, as it is sheared in the sector or worm gears.

That's what the Corn Head is good at, shear.

[itslow]

Originally Posted by cas3

it doesnt surprise me at all to learn that some one figured out another way into our wallet by making a cartrige that only fits they're gun

As stated previously, the Deere grease doesn't require a "Deere-only" grease gun. It fits standard US grease guns that are designed to accept standard 14 ounce cartridges.

[SofaKing]

Originally Posted by JSeery

That's what the Corn Head is good at, shear.

Seth was recommending a John Deere product called "Multi-Luber" that I know nothing about. He said it was very thick until it gets warmed-up and I am curious what constitutes "warmed-up" in regard to this product? My thinking is that as the steering wheel is turned, the lubricant in the steering box is sheared and forced out of the area between the worm gears or sector gear, depending on steering box design. If multi lube is very viscous at lower temps, will it flow back into those areas readily? Knowing nothing about the product or steering box temps, I would like to learn from his/ other's experience. I am going to check the temp of the steering box and compare that to ambient temp.

[G.M.]

Originally Posted by flatheadmurre

You don´t need cornhead grease from deere if it´s hard to source locally...what you need is NLGI00 can be bought from other suppliers...we don´t grow much corn here in sweden...i use another brand NLGI00 with teflon in it works great.

I use CHEAP chassis grease. It has a low drip or melt point.
The steering box almost touches the exhaust manifold and
heats the steering box and makes the grease a little thinner.
I have used it for over 30 years and all of my steering boxes
stay with no play and easy to steer. G.M.

[SofaKing]

I thought I'd research my own question, here's one data-point from this morning. I drove my pick-up about 30 miles, around town, light traffic a few minutes at 60MPH but mostly 30-40mph. Outside air temp is 38F. Before I left the garage the steering box was 50F and the adjacent exhaust manifold was 50F. When I got home the exhaust manifold was 426F and the steering box was 133F. That is hotter than I expected. I'll repeat this in the summer when its 100F ambient.