Hey guys, so a buddy of mine let me drive his 2011 lancer w 60k miles and it was grinding terribly into 3rd no matter what speed. Even when coasting 5 to 10 mph it would not engage 3rd without grinding so loud that everyone in the parking lot could hear it.

Long story short he was about to have the tranny rebuilt when I told him to change his tranny fluid.
He put a pint of lucas transmission fix and a little mobil 1 75w-90 in it and now it's not even noticeable. . . .

So many have called bs on this but I swear you would never know anything was wrong with that tranny now.

Now i'm getting the hard shifting with the valvoline 70w-90 and I'm trying to decide between Royal and the lucas stabilizer/ or trans fix

Is it worth it

 

If you ever read the stickes you would have known not to put that oil in there in the first place...

 

Yea you really only want to put GM recommended fluid in. Which you can get at the dealer

 

That Lucas is for automatics only. If it grinds in 3rd I think it prolly needs a new gear or rebuild.

 

lucas anything is a total gimmick, dont know why people still swear by their crap products.

 

Yea ik ik GM blah blah blah I'm probably going with royal purple anyway. . . .
Really though. It may not have fixed his transmission but it sure did quiet it down lol


Sometimes I get stuck at lights because my tranny won't go into 1st

edit: happens at random, in random gears too, thinking maybe I should change the clutch fluid? it's like shifting through rocks

 

All your doin is putting a band-aid on the problem.

Mine sometimes wont go into 1st either and lots of others have experienced this too. Just let go of the clutch and press down again. Should slide right in

 

I love it.
OP puts in the wrong fluid and problem develops.
His solution is to put a different non receommended fluid in.

inb4helpmytransblew

 

Yep i went the royal purple route once..... It was ok through the summer and as soon as it got below 35 it was a bitch to shift. I put lnf fluid in it and its like a new transmission. Just do it right is my 2 cents worth. Cost more money in the long run.

 

its not a total gimmick. ive worked on a number of different blown alcohol dragsters and funny cars and we use lucas products with great success. we often use the engine oil stabilizer as a pre lube for valve train components instead of just oil, the lucas sticks to the rocker arms much better and gives better prelube for the initial fire up. we also use 1-2 quarts of the engine oil stabilizer (depends if its a dry sump oiling system or not) in the oil. we have noticed higher oil pressure at stage rpm and higher and more stable oil pressure after the finish line. we also notice the alcohol doesnt mix with the oil quite as easy, as a result we can get an extra pass out of the same oil (typically 3 passes instead of 2. important when you have a dry sump system with 20-24 quart capacity). as far as a street car, cant really comment.

as far as transmission additives and fluid type, in our transmissions run the gm stuff only. many have tried all sorts of different fluids, the results are, the gm stuff is best. adding lucas oil stabalizer is a bad idea as it will just make the fluid thicker. oil viscosity in a manual transmission is a 2 edged sword. when the oil is too thick it cant be pushed from behind the syncros during a shift, causing the syncro to slip, and ultimately causes the grind or "munch" during a shift. if the oil it too thin it will not lubricate the bearings and gears correctly and could ultimately lead to a failure. todays manual transmissions have evolved to the point were they are no longer designed for a universal fluid, to get optimum driveabiity they design the transmission to use a very specific fluid, often times a fluid is designed for only one or 2 models of transmissions.

 

Our cars use ATF to begin with. You can use GM, however I've been using Amsoil ATF for over 25,000 now and you wouldn't know the difference, and it still shifts as it was fresh. It meets or exceeds Dexron 3 requirements.As for additives, I wouldn't do it as the additive could compromise or alter the fluid function.

 

thats not 100% correct. the 2.2l and 2.4l engines are backed with the f23 transmission, that transmission uses atf. the f35 transmission used in the ss/sc and ss/tc uses a special fluid, and despite it being red, it is NOT atf. using atf in the f35 could very well be catastrophic.

 

All i have to say if the manufacturer already put a fluid that works why change it up. Unless your a engineer and know everything i wouldnt risk it, simple as that. They create that fluid for a reason as sometimes different detergents are used also the way some fluid react to metals or plastic is different so more than likely you will end up braking something.

 

Cause fluids need changed at times. Also, engineers can be so smart that they're stupid. But OP, I'd look into the oem fluid, do some research on it, and go from there.

 

Everyone, just use the LNF fluid. It really is that simple.

 

I had my tranny grind soon after (within 2000km) of GM replacing my fluid at 75,000km. Not sure if they used LSJ fluid or what. But it was weird that I take it in for preventative maintenance and than the tranny goes right after. Replaced with a brand new unit for free under warranty though, can't complain too much.

 

Most likely they used the fluid for the F23 transmission, because its a cobalt and they didnt make different engines or transmissions for those

 

You can do this with any heavy duty oil stabilizer, it doesnt mean that it serves a purpose or helps to make any normal gasoline engine in your economy car run better like most of the outlandish claims these company's make. It doesn't "extend engine life" it extends oil life by changing the viscosity and flow rate. Their fuel treatment that the guys behind the counter at your local parts store try to shove down your throat when buying something does more harm then good in fuel systems, and doesnt help "lubricate" anything. In fact ive seen it ruin more fuel systems then it has helped, especially on small engines (motorcycles).

 

Ok you guys have convinced me. I'll order the GM fluid just to be safe. jeez its hard to get ahold of that stuff


Think having valvoline full synthetic limited slip in there for a few k miles hurt anything? will be a week or so before i have the gm stuff and time to change it



btw i have 10w-40 motor oil in my 71 c10 4 speed its borg warner T10