Wholesome automated transmission fluid (ATF) is usually a brilliant, translucent purple colour. Nonetheless, because it ages and degrades, it will probably darken to a reddish-brown. A leak could current as a reddish stain, generally with a barely candy odor, beneath a automobile. The colour can vary from a brilliant cherry purple to a darkish, nearly black, brown relying on the fluid’s age and situation, in addition to potential contamination from different fluids.
Recognizing the hue of discharged ATF supplies helpful diagnostic info. It might assist pinpoint the supply of a leak and the urgency of repairs. Distinguishing transmission fluid from different automobile fluids, reminiscent of energy steering or engine oil, is essential for correct troubleshooting and efficient upkeep. Early detection of a leak can stop important harm to the transmission and keep away from expensive repairs. Traditionally, ATF has been dyed purple to help in leak identification and differentiate it from different automotive fluids.