It is a good idea to periodically lubricate your door hinges. White lithium grease is recommended. It is great for higher-load items like heavy doors that have metal-to-metal contact, because it cushions parts, is waterproof, resists wear and tear and doesn’t freeze or melt in extreme temperatures. You can buy an 8 oz. tube of Lucas lithium grease, on Amazon, for only $5.24 (free shipping with Amazon Prime). Amazon.com : Lucas lithium grease Also, it is recommended that you apply rubber protectant on all rubber moldings. Sonax is a good product to use. https://www.amazon.com/Sonax-034010...hvlocphy=&hvtargid=pla-4584207585872770&psc=1
Here is a good article discussing the various types of lubricants. What Grease for Car Door Hinge? For Longer Lasting [Explained] - Lubricants Advisor
Would MDS (molybdenum disulfide) be a good hinge grease? It is famed for its extreme pressure resistance, which is is why it is used on cam lobes during break in installation.
Molybdenum-based grease is also a waterproof lubricant that resists wear and tear. It would be a good choice to lubricate door hinges. because it doesn’t corrode like lithium-based grease. The down-side is that it is two or three times more expensive than white lithium grease.
