PennGrade 1 80w-90 "Classic" Gear Oil (GL-4)
PennGrade 1 80w-90 "Classic" Gear Oil (GL-4)
PennGrade 1 Oil

PennGrade 1 80w-90 "Classic" Gear Oil (GL-4)

Regular price $9.98 $0.00
Shipping calculated at checkout.


80w-90 "Classic" GL-4 is the perfect gear lubricant for vintage Triumph, BSA, Norton, Harley, and any transmission containing bronze or brass bushings, thrust washers, or any other "soft" metals.

Most 80w-90 gear oils found on auto parts shelves are a GL-5 specification, which has been proven to harm "yellow metals" found in vintage gearboxes.

"Classic" GL-4 contains no friction modifiers and will not interfere with synchronizer performance in manual transmissions. Most British motorcycle gearboxes use less than a quart, Harley less than two quarts.

For Monograde PennGrade 1 oils click here

For V2 motorcycle specific oils click here

For SAE 30 "Break-In Oil" click here

All oil will be shipped UPS Ground.

OIL SHIPPING SURCHARGE all cases of oil will ship UPS ground and have a $14.95 shipping surcharge. Any other amount will have a $8.95 shipping charge.

Sorry but we can not offer free shipping on engine oil and lubricants.

Oil can also be picked up at the shop in North Hollywood.

For Classic 80w-90 Product Data Sheet click here

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