Originally Posted by m51142
Not knocking Repsol, it is a excellent oil. I think you would have found similar results with any full synthetic. I use Rotella T 5W-40 Synthetic, cost around $14/gal. at W-Mart.
Nope you are so wrong on this one...
I usually don't get involved in ANY type of DOT (dreaded oil thread), but I will throw in my .02 here.
I'm in a very fortunate position in that I can try just about ANY oil available to the public for free. I've used all the big names & they are all pretty much the same (Castrol, Motul 5100, 3000, Mobil1, Amsoil, Royal Purple etc...). I used to use the Mobil1 Racing 4T religiously & paid big bucks for it, but it is really no better than most any other "premium" synthetic & the Mobil 1 MX4T that is so popular & can be bought at any auto parts store is just not that great at all compared to the other top of the line oils. In fact many owners will tell you that they have had clutch slippage problems with that stuff in high horsepower applications.
I've recently switched to the Repsol Full Synthetic & there is nothing else like it. The stuff is in a league of its own in terms of transmission & clutch engagement. It smoothes out the tranny & I have yet to have any type of clutch slippage problem on any of the bikes I have used it in including a 330HP ZX-12R Turbo.
You will notice a difference immediately in how the transmission performs, but the second time you change the oil is when it really sinks in. I know it sounds like a sales pitch, but those of you that know me also know I am a very straight shooter & if I say something works it does. I don't subscribe to the placebo effect of anything & do lots of thorough testing before I open my mouth. Unfortunately it is very difficulty to quantify oil results so you'll just have to trust me when I tell you the Repsol oil rocks!