SKU: 84485380515
gl-4 gear oil

gl-4 gear oil PennGrade 1 80w-90 "Classic" Gear Oil (GL-4) – Franz and Grubb Engine

Sale price$21.95 Regular price$24.39
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

gl-4 gear oil PennGrade 1 80w-90 "Classic" Gear Oil (GL-4) – Franz and Grubb EngineNOT ALL GEAR OIL IS THE SAME! 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

NOT ALL GEAR OIL IS THE SAME!

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84485380515

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4.3 ★★★★★
Based on 23 reviews
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Verified Purchase
Efrain
Draper, US
★★★★★ 5
Great
Good quality and price. Perfect size fit. Easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
K
Verified Purchase
Kaya
Louisville, US
★★★★★ 5
Great Quality Filter and Perfect Fit for My 2022 CR-V
I bought this EPAuto air filter for my 2022 Honda CR-V 1.5L, and it couldn’t have been easier to install. It fits exactly like the original — snug and secure — and the whole process took under five minutes without any tools. Just open the air box, pull out the old filter, and drop this one in. The quality feels solid with a sturdy frame and well-made filter material. It’s not flimsy at all, and you can tell it’s built to last. After swapping it in, I noticed the engine felt a bit smoother, and there was a slight improvement in responsiveness, especially during acceleration. I’m also hoping it helps with fuel efficiency over time. Honestly, for the price and convenience, this is a no-brainer. It’s a simple upgrade you can do yourself that helps protect your engine and saves you money on dealership replacements. Highly recommended if you drive a newer CR-V like mine!
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Reviewed in the United States on July 24, 2025
T
Verified Purchase
Tony
Waukegan, US
★★★★★ 5
Honda air filter
I am very happy with the air filter, it fitted perfectly in my Honda Civic.
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Reviewed in the United States on May 4, 2026
J
Verified Purchase
J24KT
Lowell, US
★★★★★ 5
Size Does Matter
Product: Air Intake Filter Brand: EPAuto Positives: Super affordable and compact. Easy to remove and install, just loosen 4 screws and that’s it. Made with quality and durable material. The filter provides ideal airflow for the engine to function properly. Negatives: None. Overall Impression: I needed a replacement filter for my wife’s car and I didn’t want to spend a small fortune. This item was practically a steal at the list price. No need to spend more money, all the quality and longevity can be had with this filter. My wife drives her car almost every day and that means it gets a pretty good amount of use and lasts about 12 months until I decide to change them again. I would definitely recommend this product to others looking for a similar product.
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Reviewed in the United States on November 3, 2025
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Verified Purchase
Garvit
Waukegan, US
★★★★★ 4
Performance was good
my usual to go product for Honda CRV i had for long time. But last item i received I was not happy the quality seems like changed from past products. so far i had no complains. Packaging as always was solid. Performance was good. Lasted for more than mileage mentioned on the product page. Air flow is good.
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Reviewed in the United States on December 1, 2025

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