should oil be changed in manual transmission?

[swidd]

I also had positive experience with changing the oil to MT-90 GL-4. Gears are smooth in 10 Fahrenheit weather - no warm up needed. It takes a few thousand miles to notice it.

I also had a bad experience when I bought some synthetic valvoline GL-5 oil that the instant oil change place put in. It made it very sticky to shift gears, even in hot weather. So I bought MT-90 on my own, and took the GL-5 stuff out in less than 200 miles.

[Thirty-Nine]

Originally Posted by swidd

I also had positive experience with changing the oil to MT-90 GL-4. Gears are smooth in 10 Fahrenheit weather - no warm up needed. It takes a few thousand miles to notice it.

I also had a bad experience when I bought some synthetic valvoline GL-5 oil that the instant oil change place put in. It made it very sticky to shift gears, even in hot weather. So I bought MT-90 on my own, and took the GL-5 stuff out in less than 200 miles.

I've never heard anything but positives about the Redline stuff. And yes, a Yaris can shift quite nicely. I've got the full NST bushing and short shifter kits, and it feels great. I'm sure some Redline would compliment it quite nicely.

[Lazerdot]

I'm using Amsoil Severe Gear 75w-90. My owner's manual recommended both GL4 and GL5. Since I AX and do track days the type I'm using made sense. I haven't had the shifting issues some have spoken about. The NST SSK I have was always a bit different then stock and so far no adverse changes.

[fidgell]

If anyone is interested, Canadian dealers charge CAD$82.95 for this.... Same price as for a coolant flush and change!

Small price to pay to protect the box!