Wholesome automated transmission fluid (ATF) sometimes seems vibrant purple and translucent. This vibrant shade signifies the fluid is recent and successfully performing its lubricating and cooling features. Because the fluid ages and degrades, it may darken to a reddish-brown or perhaps a darkish, opaque brown. A burnt odor usually accompanies this shade change, indicating extreme degradation and potential harm to the transmission.
Sustaining the correct shade and situation of ATF is vital for the longevity and correct operation of an automated transmission. Clear, vibrant purple fluid ensures ample lubrication and cooling, stopping friction and overheating that may result in expensive repairs or full transmission failure. Traditionally, ATF formulations diversified considerably, making shade a much less dependable indicator. Trendy fluids, nevertheless, adhere to stricter requirements, permitting shade to function a helpful visible diagnostic device.