Is this GL4 or GL5? Is it suitable for a scooter rear hub? Vespa advises GL4 only for rear hub. Thanks

Hi, I Don't think it is suitable for scooter rear hub.

I have a 2000 mercury 175 outboard what do I need to change my lower unit oil?

You need •(1) High performance mercury gear lube Quart 32oz.(it's blue)..•(2)lower unit fluid pump(Get a decent one).•(3) Buy replacement lower unit fill/vent washers. (mercury s are blue and flat,but they might use o-rings on motors now.not sure)Remove the cap on the gear lube and slide the pick-up tube from the gear lube pump into the quart.go slow so you dont spill.then screw that onto the quart of gear lube .it will screw on the threads where the cap was removed(That way you can leave it on until you need to use aagain).Lower the lower unit down and level.doesnt have to be perfect.Now using Med flat head screwdriver remove the bottom drain screw. (Make sure you have a catch pan for old fluid to drain.)when you remove the bottom drain screw check that you remove the washer.normally it is on the screw but it can also get stuck on the screw hole.clean off metal particles on the magnetic part of the screw.clean it off.put new washer/o-ring on it and put to side.Now remove the top screw(vent screw) and the gear lube should start coming out much faster.find old gasket/o-ring,clean off screw and put new gasket/oring on it and put to the side.Now screw the tip of the fill hose into the fill hole(the bottom screw).now,pump,pump,pump until you start seeing the blue gear lube coming out of the top screw hole (vent hole).once gear lube starts coming out,stop and put your vent screw back into lower unit.now get your fill screw ready with washer on it ,unscrew the fill tip and as soon as you pull the fill hose away.... immediately put your fill screw in the hole and hand tighten as far as you can.then using your flathead tighten it up,and then tighten up the top vent screw.leave pump installed on the quart of hearlube and put up for next year.wipe down lower unit,dispose of old gear lube,and after your done go back and double check the tightness of both screws. Side note: if when changing gear lube the old lube as it drains smells like burnt almonds.Change it out again in 3 months.Then you can get back on a once a year lube service.when old lube smells like that it means it was in too long and burnt/broke down.so you want to change it out again sooner than normal service just to be sure you get all that old contaminated fluid flushed out. ☆Hope this helps you or anyone else out who is looking to save money and do it themselves. In on disability now due to a spinal injury that occurred while I was a marine mechanic.But I was a certified Mercury and Yamaha outboard technition for 20 years.if you have any other questions just let me know.. -Bradley

Is this blue in color

No - just received it. Disappointed - why is it so difficult to find premium gear oil that is blue-green in color. What I did not see on the label for units below 75 hp. Since I cracked the seal not sure I can return it.

can i use this on a 190hp sterndrive? Mercruiser I/O sterndrive for outdrive gear lube?

Yes effectively its the same compounds

Desertcart Logo

Deliver to Panama

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

🛥️ Keep your marine gears running smooth — don’t let corrosion sink your ride!

OEM TRUSTED FORMULA - Direct replacement for Mercury Marine 858058K01, ensuring perfect compatibility
MARINE GRADE DURABILITY - Engineered to extend gear life under harsh marine conditions
BULK READY 32 OZ BOTTLES - Convenient pack of 6 for long-term maintenance and cost efficiency
WATER RESISTANT PROTECTION - Special additives safeguard gears even if water infiltrates the gear case
OPTIMIZED FOR 75 HP OUTBOARDS - Specifically designed for outboard motors below 75 horsepower

Quicksilver 58Q01 80W-90 Gear Lube is a premium marine gear oil designed to meet Mercury Marine OEM specs, providing superior protection against wear, corrosion, and water damage for outboard motors under 75hp. Packaged in 32 oz. bottles, it ensures long-lasting performance and peace of mind for serious boaters.

Specifications

Material	Metal
Brand	Quicksilver
Package Information	Bottle
Liquid Volume	5.64 Litres
Item Weight	1.8 Pounds
Recommended Uses For Product	Lube
Viscosity	80W-90
Specific Uses For Product	Protection Against Corrosion
Item Form	Oil
Global Trade Identification Number	00745061038912
Manufacturer	Quicksilver
Net Quantity	32.0 Fluid Ounces
UPC	745061038912 745061493735
Number of Items	1
Country of Origin	USA
Model number	858058Q01
Colour	Unspecified
Item Weight	816 g
Product Dimensions	10.16 x 6.05 x 23.5 cm; 816.47 g
Item model number	858058Q01
Item Height	9.25 Inches
Item Width	2.38 Inches
Included Components	marine gear oil
Are batteries included?	No

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.