I've just finished converting all my stock to metal wheels instead of plastic, what I wonder is whether to lubricate the axle ends to reduce rolling resistance (quite considerable on my hopper wagons - the 4-axle ones) and if so whether to use light oil or grease. I appreciate that lubricant is sticky and therefore liable to pick up dirt but do the pros outweigh the cons?
What do you think, or better still what is your experience?
What do you think, or better still what is your experience?