I wonder what the difference is between the Redline heavy shockproof and the Redline vtwin transmission with shockproof

this is what i got off of Summit Racing



Similar to Red Line's heavy ShockProof oil, V-twin transmission oil with ShockProof provides unequalled protection for both stock and aftermarket American V-twin transmissions. This product dampens transmission noise (reducing the notorious shifting "clunk" found in these gearboxes), dramatically reduces temperature, provides thicker oil films between gear teeth, and completely resists throw-off. Red Line V-twin transmission oil is compatible with petroleums and synthetics. Its viscosity characteristics produce a film thickness similar to a 75W250 grade, while providing the same low-fluid friction as an SAE 75W90.


Red Line heavy ShockProof gear oil is a unique lubricant containing a suspension of solid microscopic particles as an extreme pressure agent. It provides a unique solid dispersion, which cushions gear teeth to help prevent tooth breakage and allows the use of lower viscosities. The viscosity characteristics allow the lubricant to resist throw-off and provide a film thickness similar to a 75W250 grade, while providing the same low fluid friction as an SAE 75W90. This gear oil is recommended for heavily loaded racing differentials and transmissions, off-road racing, and problem gearboxes.

 

Probly the color!
I'm sure both would work fine including the Shockproof Lightweight.

 

Someone on here talked to the people at Redline & they said it was the same product.

 

I think I recall another thread on this and come to the end that redline said they were the same. No difference except the bottle.

 

Because of the design of the 6 speed Harley tranny, lighter with multiple simultaniously moving parts, I'm useing the redline V twin with shockproof. It's thinner then the shockproof and because of this less heat and drag is generated.
Redline has been making oils for specific application for a lot of years. When they made an oil specific to the 6 speed I went with it. No regrets.

 

The Red Line shock proof heavy and the Red Line V Twin with shockproof are identical in viscosity. I called them and was told it was done for marketing reasons so V Twin riders would know it was ok to use in their trannys. They are exactly the same. Call and talk to them.

 

Same pink color?
The Shockproof Lightweight is green.

 

yep, looks like pepto... just changed mine the other day as well.

 

Yes both heavys are pink. I was talking about shock proof heavy and shock proof v twin being the same. I have never seen the light weight so I don't know what color it is.

 

Probably is just a marketing gimmick, but hey, it works. Got me to try it. And you know what? I kinda like it. I use their oil in all three holes.