Royal Purple-ROY01512 ROYAL PURPLE SYNCHROMAX QT. TRANSFLUID, 1 Quart (32 Ounces)

It works well for my friend’s manual Jeep. It makes it shift a lot better and it is pretty good quality. It is say to put in if you have a pump to pump it in from the bottle to the transmission. It helps to stop leaks and is quick to dip it in. The only issue is that it is expensive.

used in my MKIV Supra V161 transmission and it shifts smooth

great

I replaced the manual transmission fluid and differential oil in my 1998 BMW 323is, both of which hadn't been changed in at least 100,000 miles. This fluid in the transmission and RP Max Gear 75W-90 in the differential. I expected some improvement, but it runs much quieter and smoother than I thought it could. Sometimes it is like I nudge the shift and it sucks it into the gear I want. Really surprising how smooth it is. And my car is quieter even though I never thought it was noisy before. Now the main sound is the engine when accelerating and if I'm at cruising speed I just notice the quiet.Having said that, I should note that the existing transmission fluid was black and only about 1/4 to 1/3 full. There was some form of slow leak since the transmission was caked with dirt and oil yet I never had stains where I park my car. So I'm comparing to what was an obviously under-filled transmission with old fluid. The first 50 miles or so after replacing the oil the shifting was notchy and terrible and I was thinking I'd have to put something else in. I was also worried I'd fried it due to low fluid. But then one day it shifted smoother, and the next even smoother, until it was noticeably better than before. Now a week later I'm really impressed.Forgot to mention my transmission is one of the manual ones that take automatic transmission fluid (Getrag) and this is rated for that usage. Also I've noticed I have to go to 2nd gear much sooner now because the car gets to speed much quicker. So it seems to be responding better to the throttle as well. That seemed to have happened right after the change but I was babying the car due to the rough shifting so I only really accelerated normally a few days ago.Update 06/2012 - Several tanks of gas later and my MPG is higher. Really improved the highway MPG, and it just did 32.09 MPG, doing the relatively flat round trip Los Angeles to Palm Springs plus some other mainly highway driving. My car has been getting 23 to 24 for the last two years and maybe 25 to 26 before that. I've only hit 32 mpg once before in August 2009, and have had only 6 tanks of gas get over 30 mpg in the almost 12 years I've owned the car. Stop and go driving is just slightly higher than before though as the prior three tanks of gas were 23.03 mpg, 27.38 mpg, 24.99 mpg.Update 10/2012 - The mpg the last 3 tanks of start and stop local driving were all over 27 mpg. The EPA estimated mpg for my car was 17 city/ 25 highway. So it seems to be doing well given it has the original engine and transmission.

Fast shipping box damaged

Great manual transmission lube. Using in my Mercedes NSG370

I heard that the Royal Purple 01512 could be used as a less expensive alternative to the outrageously expensive Versatrak fluid. 1 year after replacing the original differential in my 2003 Chevy Venture with a used junkyard one, differential #2 was groaning worse and worse on even slight turns, even after I put in new Versatrak fluid twice and drove in alternating circles until I was dizzy (like you are supposed to do to work the fluid into the clutch packs). Still the groaning from the differential, and now from me as well.Another used differential would cost $600 to $1200 dollars and the local Chevy dealer wanted $4300.00 plus labor for a new differential since they claimed they couldn't get a rebuild kit. So I figured "what have I got to lose?" and I tried the Royal Purple. After putting in the fluid, I believe I probably set a new world record for driving a versatrak GM junker in circles: I drove in right and left circles for three minute per direction, never stopping until 45 minutes had passed. Needless to say, I did not eat for the next 24 hours. Tip: I used the "spinning dancer" head turn trick each half turn to reduce dizziness. After about 30 minutes (long after I had lost hope) the groaning actually began to lessen, and then--it finally went away after about 40 minutes! But the groan came back after the differential cooled down (but it was only half as loud now). Undaunted, I began the "circling" process again. This time it only took 20 minutes to get rid of the groan. The next day, the groan was back again, but now barely perceptible. 10 minutes of alternating circles this time until silence was achieved. Now, after a week, the groan is still all but gone: only slightly audible on only the sharpest of turns. But I must have worn about 20 percent of the tread off the front tires with the endless circling- and the looks from people!So was it the fluid that helped, or my endless parking-lot circling? The world may never know, but I still heartily recommend the purplemax fluid for a versatrak differential, especially if you become as desperate as I was. P.S. I am going to trade in my Venture before the noise comes back again!

If you're like me and love your car more than you love most people, then you'll want to treat it to the Royal Purple-ROY01512 ROYAL PURPLE SYNCHROMAX QT. TRANSFLUID. This stuff is a game-changer!I was hesitant to try this transmission fluid at first because I thought my old stuff was doing just fine. But boy, was I wrong! The Royal Purple-ROY01512 ROYAL PURPLE SYNCHROMAX QT. TRANSFLUID has taken my vehicle's performance to the next level. It's like giving your car a big hug and telling it everything will be okay.Shifting gears has never been smoother, and my fuel economy has improved since using this product. Plus, it's a synthetic product, which means it's more durable and longer-lasting than your ex's attention span.The 1-quart bottle is easy to use, and it's compatible with most manual transmissions. The only downside is that it doesn't come with a built-in unicorn horn or a miniature disco ball, but I guess you can't have it all.Overall, I highly recommend the Royal Purple-ROY01512 ROYAL PURPLE SYNCHROMAX QT. TRANSFLUID to any car enthusiast or anyone who wants to protect their transmission and make their driving experience a little bit smoother. It's a 5 out of 5 in my book, and my car agrees (or at least, I think it does).