It exceeds API GL-5 specifications.

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58204 Heavy ShockProof Gear Oil - 1 Quart Bottle

58204 Heavy ShockProof Gear Oil - 1 Quart Bottle

Q: What viscosity is this particular oil?

Film thickness greater than an SAE 75W250, yet low fluid friction like 75W90For heavily-loaded racing differentials and transmissions, problem gearboxesMany performance racing applications like Sprint/Midget/Dirt Late Model Differentials, Detroit Lockers and spools, NHRA Top Fuel and Funny Car rear endsNot recommended for most synchro applications due to the product's extreme slipperiness

Q: What is the viscosity of this? Need a specific number.

Film thickness greater than an SAE 75W250, yet low fluid friction like 75W90. This is from the manufacturer's site.

Q: Canged primary chain OIL of my 2002 RoadKing ScreamingEagle I made a MISTAKE! Added REDLINTransFluidw/Shockproof. IS It COMPATABLE

I would think not. As the primary runs a 20w 50 and the red line is something like 75 90 it's going to a lot thicker. I would call a local Indy not HD and ask them for sure.

Product ID: 279005618

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Details

Material
Synthetic
Brand
Red Line
Package information
Bottle
Liquid volume
32 Fluid
Item weight
771 g

⏳Extended drain intervals for less maintenance

🔥Fully-synthetic polyol ester base for extreme conditions

⚙️75W90 viscosity for optimal gear protection

Frequently Bought Together

Red Line 58204 Heavy Shockproof Gear Oil - 1 Quart

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K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils, Wrench Off Nut: Fits Select Harley Davidson Motorcycles, KN-171B

Description

⚙️ Gear up with the shockproof edge that pros trust!

PROVEN TRACK RECORD - Trusted by top-tier racing teams in Sprint, Midget, and NHRA applications for superior shock absorption and gear protection.
EXTENDED SERVICE LIFE - Designed to reduce wear and extend drain intervals, saving you time and money on maintenance.
RACE READY LUBRICATION - Engineered with a fully-synthetic polyol ester base to deliver unmatched protection under extreme conditions.
INDUSTRY LEADING STANDARDS - Exceeds API GL-5 specifications, ensuring premium quality and reliability for your vehicle.
MAXIMIZE MILEAGE EFFICIENCY - Boost differential efficiency for better fuel economy and longer-lasting performance.

Red Line's 58204 Heavy ShockProof Gear Oil is a fully-synthetic 75W90 lubricant crafted from polyol ester base stocks, delivering exceptional protection and efficiency for high-performance differentials. Ideal for racing and specialty applications, it exceeds API GL-5 standards and extends drain intervals, making it the go-to choice for professionals demanding peak gear performance.

Specifications

Manufacturer	Red Line
Brand	Red Line
Model	Redline
Product Dimensions	22.86 x 9.88 x 9.83 cm; 771.11 g
Item model number	58204
Exterior	Painted
Manufacturer Part Number	58204
OEM Part Number	58204
Item Weight	771 g
Viscosity	75W90

Have a Question? See What Others Asked

What viscosity is this particular oil?

What is the viscosity of this? Need a specific number.

Canged primary chain OIL of my 2002 RoadKing ScreamingEagle I made a MISTAKE! Added REDLINTransFluidw/Shockproof. IS It COMPATABLE

Is this GL5?

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