Quote:
Originally Posted by knucklesplitter
It's not a short-term failure issue, it's a long-term wear issue. How many of these "thousands of Shockproof users" have been using it for 100k+ miles?
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Exactly. GL4 fluids will shorten R&P life by an amount insignificant compared to the improved synchro operation and highly reduced chance of mis-shifts. I think it's worth 20k-50k miles off the life of the R&P, which is longer than the gearset anyway, to prevent "injuries" to the gearset when competing. Shockproof products aren't perfect, I just think they're the best compromise.
Also, I used MT90 in my Miata. Didn't like it compared to Shockproof in my Subarus.