chitwnsazn

iTrader: (3)

I find it a little hard to shift into second. It doesnt really pop in or anything but i have to force it a little into second gear. Some of my friends says that it takes a little time and it might go away cuz they all had it happen to them in their gs-r and accord. hmmm.... don't know whats wrong. I haven't driven the car much but would like to know if any of you have some input on this.

Thanks

kaotiq

bad synchros

hwallen172

I had the same problem with my 95 SC300, and it improved when I had the transmission lube changed. It didn't totally go away, but a lube change is significantly less expensive than a tranny rebuild which is what you'll need to fix the synchros. A 95 is about due for that kind of service anyway. I figure the lube change will buy me another 10K miles, and by then I may be ready to sell the car. Those new Infiniti G35 coupes look pretty good to me, and they come with a 6 speed.

chitwnsazn

iTrader: (3)

well there's 66K miles on the car but i have been practicing heal toe alot.....but it was happening before i bought the car( a month a go). I'll see what happens after lube change.

SPORTcoupe

iTrader: (2)

Lube change should definitely help a little but in the end, bad synchros are bad synchros, so if you plan to keep the car for a while, get it done ASAP.

chitwnsazn

iTrader: (3)

quick question. What kind should i use for the 5 speed?

hwallen172

A lot of people on this forum recommend Redline MT90. If you do a search on "Redline" you'll find a lot of posts that say it improved their shifting. There are synthetic and petroleum based lubricants, and I think Redline is a synthetic. The synthetic lubes have improved performance over a greater temperature range, but they cost more. Since I was changing my lubricant just as a test to see if it improved anything, I just took whatever the Castrol oil change place had on tap. It was only $20 which is pretty cheap for what you might consider diagnostics. Also, if you plan on having your transmission rebuilt in the near future, you're going to be changing the lube again, anyway.

chitwnsazn

iTrader: (3)

thanks

SPORTcoupe

iTrader: (2)

I'm using Mobil1 Synthetic (85-90....I forget the #s) and it works fine.
I heard Redline is good stuff but it's $$$

kaotiq

redline is kinda pricey but well worth it. I had it on my other car.

Buttercup

From what I imagine, the MT-90 is basically the same at MTL except that it's thicker viscosity. Basically it helps slow down the ?layshaft? so the synchronizers don't have to get as much a beating. If you want the shifter feel, it might be possible to use a thick (higher viscosity) oil. I have MT90 in my car and my synchros are beyond repair, so the stuff doesn't work. I might try a thinner oil and double clutch to save some horsepower loss.

chitwnsazn

iTrader: (3)

y would double clutch save u horse power

indelible

is changing transmission oil in a 5spd SC300 an easy DIY or should i take mine to a mechanic?

hwallen172

I think it's pretty easy if you have some way to get under the car. However, I only paid $20 to get it done with the shop providing the lube. If you wanted to bring your own lube, it may even be cheaper. When you do it yourself, you should find an environmentally conscious way to dispose of the old lube. That task alone may be worth the $20.

indelible

k, thanks