HOW TO: Changing 5MT Gear Oil (Manual Transmission)

[fc321]

Saw this also at Walmart today. It says GL-4



But of course I will just stick with the RedLine 75W80. But this stuff may do in an emergency, like for someone that is leaking oil I mean.

[dustyb]

So I changed my fluid for the first time at 107k miles. As i mentioned before, it was making a loud whining sound prior to the change. I drained out less than 1.5 qts of oil that had lots of gold metallic in it. It took a full 2 quarts of Redline mtl and nothing ran out the upper fill plug. After the change it is quiet as a mouse and shifts much better.

I'm planning on changing it again at my next oil change to flush out any additional metal particles. After i drain the oil is there anything that is safe to fill the trans with to flush it before I add the new Red line?

[Mark]

Saw this also at Walmart today. It says GL-4 But of course I will just stick with the RedLine 75W80. But this stuff may do in an emergency, like for someone that is leaking oil I mean.

I wouldn't recommend putting 80W-90 marine outboard motor gear oil in a Mirage's manual transmission. Lots of gear oils will indicate GL-4, GL-5, or both.

Redline MTL 75W80 GL-4 or factory gear oil is the way to go!

It was below -30F last night & it never really got above -5F today. Even in extreme cold weather, my car shifts smoothly. I am just above 20,000 miles & haven't changed gear oil yet. I wouldn't change what's recommended for this car. I've owned manuals exclusively for over 35 years, & the Mirage is the best cold weather shifting car of them all.

Heavy weight oil will most likely reduce your mpg some, too!

[fc321]

Hi Dustyb, for others reading this it may be good to fill it with the cheap marine crap I posted above (from Walmart) and let that flush out and afterwards to fill her up with Redline.

Also I found that Amazon sells the gallon size of Redline for $62.40 and it comes out to be a better value than buying the quarts $20 x 4 = $80

And support poor Jeff Bezos who just lost half his life savings in a divorce.

Update: Thanks Mark, yes i agree with you will definitely use Redline when mine comes due. Thank you to you and everybody that explained the reasons why we should stick to that one