RC F (2015-present) Discussion topics related to the RC F model

New leak at rear of RCF

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Old 02-18-19, 11:33 AM
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MDElliott
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Default New leak at rear of RCF


Not sure if this is rear end fluid, brake fluid, or fluid from the shock. No smell and slightly cloudy. Going into Lexus on Weds.
Old 02-18-19, 06:56 PM
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lobuxracer
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If no smell, it isn't diff oil. Diff oil has high sulfur content (EP additives) and smells bad no matter what.

FYI, if you have the TVD, those clutches are using Toyota WS ATF while the center section is using standard gear oil. WS ATF is usually red, but depending on the surface it is staining, it might show a different color. Also there is a left unit and a right unit. They do not share lubrication, so each is completely independent from a fluid perspective.

Last edited by lobuxracer; 02-18-19 at 08:49 PM.
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Old 02-20-19, 12:42 PM
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Conclusion - both front & back struts on drivers side were leaking. Lexus stated extremely rare to have both struts and the same side leak. Being replaced under warranty. Surprised that the cost of the two struts was only $390.
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Old 02-20-19, 07:01 PM
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BlueRCF10
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Originally Posted by MDElliott
Conclusion - both front & back struts on drivers side were leaking. Lexus stated extremely rare to have both struts and the same side leak. Being replaced under warranty. Surprised that the cost of the two struts was only $390.
Sounds strange! Glad warranty helped!
Old 02-20-19, 08:10 PM
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In my time on Club Lexus, there have been quite a few blown shock threads/posts. I clearly remember the first one, it was a 2006 IS350 with less than 6 k miles. Both rear shocks were completely useless.

I am really happy you were able to diagnose the issue and get it properly repaired at no cost to you.
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