Gear/Differential Oil price guide
On eBay, the median price for Gear/Differential Oil is $53.95 across 10,567 listings.
What you'll usually pay
💡 Used ones cost about 39% more here.
👉 In short easy summary
Buyers looking for lower prices are most likely to find them with unbranded items at a median of $43.50 (down 19%) or Lucas at $43.33 (down 20%). By contrast, Royal Purple clusters near the market (median $53.50, down 1%), while the highest brand median shown is $53.50 versus the lowest shown of $38.42 (Redline Detection, down 29%). Volume listings vary widely, with 1qt. at $44.78 (down 17%) versus 4oz. at $81.61 (up 51%) and 1gal. at $84.64 (up 57%).
💚 Best value for your money
Price by brand
Why? Brand pricing spreads because higher-priced lines cluster around Royal Purple at a median of $53.5 (down 1%) while the lowest shown is Redline Detection at $38.42 (down 29%).
🛒 Some on sale right now
Common questions
Is it cheaper to buy new or used Gear/Differential Oil?
New listings have a median of $51.99, while used listings have a higher median of $72.4.
Which brand shows the lowest median price?
Redline Detection is lowest among the brands shown at a median of $38.42 (down 29%).
Are smaller volumes like 4oz. more expensive than 1qt.?
Yes—4oz. has a median of $81.61 (up 51%), while 1qt. has a median of $44.78 (down 17%).
How we got these numbers
Worked out from 200 live eBay listings (price range $20–$157, odd outliers ignored). These are asking prices, so use them as a guide. Last checked August 19, 2026.