EP2 lithium based grease ..... used throughout Industry on, high speed production, agriculture, construction and mining equipment, etc.
Less than £3 for a 400ml cartridge from toolstaion, screwfix. etc. even cheaper in bulk from other outlets.
My hybrid runs on it ..... 25,000+ miles with about 3,000 miles of those towing a trailer over the last 5 ½ years, I've done only one full service on it during that time, a complete strip out, cleaning, lubricating, and reassembly of all the bearings: Wheels, bottom bracket, headstock almost 3 years ago. everything still feels nice and tight and still going strong.
I've used EP2 for over 30 years now on jobs all over the world.