would this cure a notchy manual gearbox

It will probably help a bit after a few hundred miles, but as I previously answered it does NOT fix worn gearboxes. Regards, Jimbo.

Any good for auto box

Only for manuel gear box. Best regards Christian Stiller CEO CS Classic Parts GmbH

How many do i need for 2.7 litres of gearbox oil, if i need 3 x lots, can i put in all 60g in it ? or is that to much

It does recommend 1 tube per litre, but I've used 1 tube in a 2.4 ltr box and still noticed an improvement. You could put 60 g in, but remember to check the gear oil level is correct and don't over fill.

Can this be used in gearboxes with overdrive?

It really depends on the oil you use in your manual gearbox. This product MUST NOT be used with Automatic Transmission Fluids. If you are using SAE 75W (GL-4) or up to SAE 90W then this product will be fine. It's purpose is to coat the gears to reduce friction and wear, it does NOT fix worn gearboxes. Always check with your vehicle manufacturer what is the correct oil for your particular vehicle model.

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LIQUI MOLY Gear-Oil Additive | 20 g | Oil additive | SKU: 1040

LIQUI MOLY Gear-Oil Additive | 20 g | Oil additive | SKU: 1040

Product ID: 48394780

Details

Brand
Liqui Moly
Item weight
0.02 Kilograms
Liquid volume
20 Millilitres
Material
Molybdenum
Package information
Tube

🔥Handles high thermal loads

⚙️Durable MoS2 lubrication film

🛢️Treats up to 1L gearbox oil

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NZ$66

Duties & taxes included

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Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Upgrade your gearbox game—silence the noise, feel the smooth!

EASY UPGRADE - One 20g tube treats up to 1 litre of gearbox oil—simple, effective, essential
HEAT WARRIOR - Protects your gearbox under intense thermal stress
PRECISION FIT - Formulated specifically for gearboxes, driveshafts, and differentials
SMOOTH OPERATOR - Reduces gear noise and wear for a whisper-quiet drive
LONG LASTING SHIELD - Creates a resilient lubrication film that disperses temperature peaks

LIQUI MOLY Gear-Oil Additive is a high-performance lubricant enhancer containing MoS2 that forms a durable film on sliding surfaces, reducing wear and noise in gearboxes, driveshafts, and differentials. Designed to withstand high thermal loads, this 20g additive treats up to 1 litre of gearbox oil, improving gear shifting smoothness and extending component life. Ideal for professionals seeking reliable, long-lasting gearbox protection (not for wet clutch motorcycles).

Specifications

ASIN	B001CZSGUI
Best Sellers Rank	31,040 in Automotive ( See Top 100 in Automotive ) 50 in Engine Oil Additives
Brand Name	Liqui Moly
Container Type	Tube
Customer Reviews	4.5 4.5 out of 5 stars (2,999)
Global Trade Identification Number	04100420010408
Item Form	Oil
Item Weight	0.02 Kilograms
Liquid Volume	20 Millilitres
Manufacturer	Liqui Moly GmbH
Material	Molybdenum Disulfide
Model Number	1040
Number of Items	1
Part Number	1040
Product Warranty	2 year manufacturer
Recommended Uses For Product	Mechanical
SAE J300 Viscosity Grade	20W-40
Specific Uses For Product	Prevent corrosion, increase efficiency
Unit Count	20.0 gram
Viscosity	0w

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