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Red Line 58204 Heavy Shockproof Gear Oil is a high-performance lubricant designed for automotive applications. With a viscosity of 75W90 and a convenient 1-quart bottle, this oil provides exceptional protection and lubrication for your vehicle's critical components. Manufactured in the USA, it reflects quality and reliability, making it a trusted choice for car enthusiasts and professionals alike.






| Material | Metal |
| Brand | Red Line |
| Package Information | Bottle |
| Liquid Volume | 32 Fluid Ounces |
| Item Weight | 2 Pounds |
| Recommended Uses For Product | Car |
| Viscosity | 75W90 |
| Specific Uses For Product | Lubrication |
| Item Form | Oil |
| Global Trade Identification Number | 00083522582049 |
| Manufacturer | Red Line |
| Net Quantity | 946.35 millilitre |
| UPC | 083522582049 083522582094 |
| Number of Items | 1 |
| Model | Redline |
| Product Dimensions | 22.86 x 9.88 x 9.83 cm; 907.18 g |
| Item model number | 58204 |
| Exterior | Painted |
| Manufacturer Part Number | 58204 |
| OEM Part Number | 58204 |
| Colour | Red |
| Assembly Required | No |
| Country of Origin | USA |
| Item Weight | 907 g |
N**C
Questo olio per differenziale è veramente fantastico e mantiene ciò che promette. E' bene ricordare che è un olio per differenziale e non va usato nei cambi con sincronizzatori. Leggere le indicazioni di utilizzo e la scheda tecnica, sono chiare e ben fatte.
3**0
My 3rd gear synchro was failing and grabbing and gridning getting in to gear, after a bit of reading I decided to try this and it fixed my gearbox and saved me $1000s.
T**Y
Used this in my 1999 Subaru Impreza Outback Sport with noisy front and rear differentials. I threw some mobil0-1 75w-90 in each diff for about 1k miles to rinse things out. Just dropping the beat-up, dark diff fluid and going to Mobil 1 was a marked improvement alone. After running that sacrificial fluid for 1k miles, I drained it (and it was in much better shape, but still appeared QUITE DIRTY) and installed some Lucas full synthetic 75w-90 gear oil with about a half of the Heavy Shockproof quart going into the front and a half going into the rear diff. I put the Redline in first so it would mix better. Both my front and rear differentials are OPEN (not LSD; if you have an LSD, DO NOT USE this redline shockproof series). Immediately, I noticed that the diffs were notably quieter and that the car even accelerated and coasted more easily than even with the mobil-1 gear oil. I used the heavy shockproof because I'm in Florida and it never gets very cold here (it dips below freezing for a few hours, a few nights of the year, but only just below). If you are not in a southern state (FL, Texas, AZ, NM, LA, etc), I would advise selecting the lightweight shockproof instead. Overall, I'm extremely satisfied. If you have an open diff, or an air locker (anything but an LSD), you owe it to yourself to add a portion of shockproof to your diff. Quieter means cooler. That's always a good thing. Also, NEVER add this to any transmission. Even a manual. Your synchros will be permanently too slippery to work properly.
P**L
The best lube for Harley-Davidson Transmissions , quiets shift & makes finding neutral effortless!
R**!
It is awesome... buy some today. I put this in my Baker 6 speed on my custom V Twin... So far so good....
Trustpilot
2 months ago
3 days ago