Cvt oil!
Former Sponsor
Joined: Jul 2007
Posts: 2,362
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From: the land between lancer and evo
that helps out for me, i wasnt sure when i should change my CVT fluid. i havent since i got my car 2 years ago and i have about 55,000 miles on it. so i guess i should do that before i look into further modding.
not to jack the thread but evosoul you seem to be the only one that knows enough about the CVT to answer my question since nobody else has. im getting evo cams for my lancer and have it tuned like the guys from pueto rico has, but i understand the boosted lancer CVT was having issues running the 190-200whp that the MT lancer was. my question is if all that powe was all motor, would the CVT be able to handle 190-200whp if it was all coming from the motor and not boost? it seems like boost itself is more the issue than the actual power but im not sure. thanks
not to jack the thread but evosoul you seem to be the only one that knows enough about the CVT to answer my question since nobody else has. im getting evo cams for my lancer and have it tuned like the guys from pueto rico has, but i understand the boosted lancer CVT was having issues running the 190-200whp that the MT lancer was. my question is if all that powe was all motor, would the CVT be able to handle 190-200whp if it was all coming from the motor and not boost? it seems like boost itself is more the issue than the actual power but im not sure. thanks
hehe j/k . But seriously There are 2 groups I affiliate with that are doing serious R&D and testing with the Lancer 4B11 platform. The CVT is good, and can handle the power. The problem is initial TQ input/load on the CVT and Heat in general are the only two things you have to worry about.
Heat built up in anything. Engine, transmission, tires, etc... etc... eventually leads to failure or stresses. Even though it is a submerged unit, a CVT still has friction generation points that will expose the belt and critical areas to high levels of heat. Sooner or later something has to give.
Transmission coolers should be used. High End Fluids should be used as well. Eneos (Mitsubishi Chemical Company) does a good job of explaining how their product out performance standard OE fluid, which is also made by Mitsubishi Chemical.
http://eneos.us/product/7
Its important to understand that while the transmission is well built. The materials used are still vulnerable to the conditions you expose it to. If you drive hard and turbo the car. There is going to be way more heat generated. I dont even recommend using D mode. Fixed gear operation will mimimize heat.
Does that make sense?
makes sense, but does that mean a turbo CVT is going to generate more heat than say a Cammed lancer with all motor mods at the same hp level? or will they be about equal issues? im planning on going the Cams route instead of turbo, but not if im running an equal risk as those with the turbo.
Former Sponsor
Joined: Jul 2007
Posts: 2,362
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From: the land between lancer and evo
makes sense, but does that mean a turbo CVT is going to generate more heat than say a Cammed lancer with all motor mods at the same hp level? or will they be about equal issues? im planning on going the Cams route instead of turbo, but not if im running an equal risk as those with the turbo.
Its low end torque gains that should worry you
Newbie
Joined: Sep 2007
Posts: 9
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From: UAE
Greetings Dohnzky, the CVT is a great transmission. Far more durable than conventional transmissions. In order to understand how it works, you can take the time to read these indepth articles on them.
http://chiptuner.ru/image/cvt/orig.pdf
http://chiptuner.ru/image/cvt/orig2.pdf
That said, to answer your question. The construction of the transmission allows for ultra long change intervals. Because the transmission is submerged in fluid (completely). The fluid will not break down with normal use. If you are towing or in super extreme heat, its wise to change the fluid. But still. Service manuals will state the change interval from 100,000km to 160,000km. Mitsubishi, Dodge, and Nissan all use the same transmission from Jatco.
Your manual book will state for you to use that specific CVT fluid to avoid you using an outdated or out classed fluid. Its very important to use the right CVT fluid type. There are different types of CVT transmissions. So Mitsubishi will be very specific what what fluid to use. Different regions like Mitsubishi UAE, may say to change the fluid more often, because of extreme heat. some may say longer.
Where I live in Canada, they state to change the fluid every 50,000km which is excessive compared to the USA recommended change interval.
Let me know if that helps?
http://chiptuner.ru/image/cvt/orig.pdf
http://chiptuner.ru/image/cvt/orig2.pdf
That said, to answer your question. The construction of the transmission allows for ultra long change intervals. Because the transmission is submerged in fluid (completely). The fluid will not break down with normal use. If you are towing or in super extreme heat, its wise to change the fluid. But still. Service manuals will state the change interval from 100,000km to 160,000km. Mitsubishi, Dodge, and Nissan all use the same transmission from Jatco.
Your manual book will state for you to use that specific CVT fluid to avoid you using an outdated or out classed fluid. Its very important to use the right CVT fluid type. There are different types of CVT transmissions. So Mitsubishi will be very specific what what fluid to use. Different regions like Mitsubishi UAE, may say to change the fluid more often, because of extreme heat. some may say longer.
Where I live in Canada, they state to change the fluid every 50,000km which is excessive compared to the USA recommended change interval.
Let me know if that helps?
so far i have only 58,000km on my GT (3yrs old) so i guess i can wait to reach it 100,000km as i only drive the car smoothly but still i would have to consult the service center for sure..
yeah thanks for that info, im trying to find enough NA mods to push 185 at the wheels, im hearing a 20whp increase from these guys with cams and tuned, so if i can squeeze out another 20 somewhere ill be happy.
Former Sponsor
Joined: Jul 2007
Posts: 2,362
Likes: 1
From: the land between lancer and evo
Yes, there are temp sensors in the tranny that will let you know if your pushing to hard. One word of advise. If you see the warning Slow down. Pull over and idle the car. Do not turn it off. Let it idle. Then continue driving.
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