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51woodie · 04-10-2026, 09:22 AM

Starting preseason service on my '46 Super Deluxe Coupe. When I bought the car, I cleaned and packed the front and rear bearings with CRC SL3131 grease. I now have 7500 miles since the job was done, and I'm questioning if I need to repack the wheel bearings.
Questions: Do I need to repack at 4500 miles?
Is the leftover half can from seven years ago, still useable?
If not useable, is there a recommended substitute?
Because SL3131 grease is sodium-based, it is highly incompatible with modern lithium-complex or aluminum-complex greases.

04-10-2026, 09:22 AM	#1
51woodie Senior Member Join Date: Apr 2018 Location: Chelmsford, ON Canada Posts: 629	Wheel Bearing Lubricant Starting preseason service on my '46 Super Deluxe Coupe. When I bought the car, I cleaned and packed the front and rear bearings with CRC SL3131 grease. I now have 7500 miles since the job was done, and I'm questioning if I need to repack the wheel bearings. Questions: Do I need to repack at 4500 miles? Is the leftover half can from seven years ago, still useable? If not useable, is there a recommended substitute? Because SL3131 grease is sodium-based, it is highly incompatible with modern lithium-complex or aluminum-complex greases.