Is this the oil that looks like Pepto-Bismol? We run one version of the Redline Shockproof oil in our Riley & Scott Mk 3 LMP675 car at work, though i'm not sure which viscosity. Seemed pretty bad, but at the same time I felt that the old tranny oil really should have been replaced earlier. The shavings that were on the magnet resembed an ice cave with those spikey icicles hanging down from the ceiling. One reason why this oil may feel so great is my oil could have possibly been really messed up, or underfilled, or just old. The problem usually happens when the car has been running long/hard for a while, so I will definately give an update with this stuff in the car. I really hope this will fix my 3rd gear synchro problem. 3rd to 4th gear in particular is the one that has noticably gone softer. That is not an exaggeration, going into each gear seems much more comforting in my eyes and gives me the feeling that I'm not doing any harm to my tranny. Almost makes it feel soft when I hit the end of a shift. I've lost some of the original mechanical feel that I had with the C's short stroke shifter but it's a great tradeoff since it takes less effort going into each gear now. This stuff overall is amazing, and it's a great bang-for-the-buck maintainence job. I don't know the long-term effects of this fluid, but if you're planning on changing tranny oils, GET THIS oil. If it is cold, it will cause some grinding or difficult shifting. It takes a certain amount of time for the fluid to heat up. I made sure that these comparisions were as accurate as possibly by driving to warm the fluid and conciously observing how shifts felt with the old tranny oil.Įdit lease read the long-term post review at the end of this thread.overall, this is not a good daily driver tranny fluid. Compared to my old tranny oil.pretty drastic change. On the other hand, another plus though was the lesser amount of effort I needed to change gears. It may be my imagination, but I felt that the shifts were continuing to improve in smoothness, but it's not a 100% good thing, since I noticed a loss of some mechanical feel. It seems that I was still breaking in the fluid (getting it into every possible crevice). Almost made me think I had longer throws again. I thought I could never get that feeling back, but stock shifts was the only thing that came to mind. This might sound like an exaggeration, but it was probably due to the fact that shifting from 1->2 and expecially 2->3 was noticably smoother. I always had a distinct sound whenever I shifted, but now it was nearly silent. First thing I notice, much less noise going from gear to gear. I try my best to put all of my preassumtions and hear-says aside. I added ~2.4L of the Heavy ShockProof.īefore every test, I try to be as fair as possible. I poured less than 1/8 of a bottle to test how it poured and to clear out any gunk that might still be lingering along the drain hole.Īfter that, I made sure the drain plug was clean and reinstalled it to moderate hand tightness. Just four screws and four 5mm hex bolts and it's off. Since I have a C's, removal is accomplished in about 5 minutes. I just did my best to let all of the old oil drain (about 30min on an angled tilt since I had two jack stands on, then 30 min flat). I didn't have the access to get the fill hole open. It's really unique very thick but when you rub it between your fingers, it's feels as if it was new 5w30 synthetic motor oil. Just by the feel and how it pours, I could already tell this was much thicker than any tarnny oil I've seen. This stuff really likes to slide off of a surface despite it's thickness. Reminds me of condensed milk but in a bright/deep red color. I'm sure those would work out very well but I know I couldn't really go wrong with trying Heavy.Ĭonsistency is very thick. I chose Heavy because I didn't like the characteristic viscosities of the lightweight and superlight at its extreme. SuperLight: can be rated as a 75W90 oil, but has the lower internal fluid friction of an ATF. Lightweight: can be rated as a 75W140 oil, but has a lower internal fluid friction of an SAE 30 motor oil. "The Heavy can be rated as a 75-250 Gear Oil, but has lower internal fluid friction of an SAE 75W90 (btw, this is the viscosity of the MT-90 iirc)." This is what Red Line claims about their heavy version: ShockProof Gear oil is offered in three flavors: SuperLight, LightWeight, and Heavy. I know many people use MT-90, but I wanted to give this a try. I was convinced to use this by a member of FreshAlloy who posted how much it made a difference. I decided to use Heavy ShockProof by Redline. I took the advice of some members here and changed my tranny oil to try to help the symptoms of wearing synchros (3rd gear).
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