Stock '13 LX 570 with 135K. No problems. Runs like a Swiss clock. Brought into my mechanic for transmission drain. Bolts were corroded on the pan and they had to drill and tap, and while waiting for the bolts to replace, it sat draining for at least 24 hours. I say this only to perhaps understand how much fluid was replaced, 9 units (qts.) plus Lucas transmission additive
I asked for OEM everything and did not check the receipt until recently and found that they did not list Toyota ATF and added Lucas additive.
The transmission shifts normally. However, at idle, I feel a very subtle vibration in the steering wheel and wonder if the thickening agent from the additive may be causing this. The vibration seems to diminish when I put it in neutral. I understand that in transmissions that are a little creaky, putting a more viscous additive helps with the coupling, but I'm unsure if this will harm my transmission.
An aside:
I strained the original never before changed ATF and found hardly any debris or sediment. I don't have the experience to draw conclusions, but it seems to me that with so little debris, there may be some justification to have "lifetime ATF" in vehicles that do NOT tow or do heavy off-roading.
If anyone has first hand knowledge of using this transmission additive in a NORMALLY performing transmission, I would like your comments. It does not make intuitive sense to me that this is harmless if the additive changes the viscosity.
I asked for OEM everything and did not check the receipt until recently and found that they did not list Toyota ATF and added Lucas additive.
The transmission shifts normally. However, at idle, I feel a very subtle vibration in the steering wheel and wonder if the thickening agent from the additive may be causing this. The vibration seems to diminish when I put it in neutral. I understand that in transmissions that are a little creaky, putting a more viscous additive helps with the coupling, but I'm unsure if this will harm my transmission.
An aside:
I strained the original never before changed ATF and found hardly any debris or sediment. I don't have the experience to draw conclusions, but it seems to me that with so little debris, there may be some justification to have "lifetime ATF" in vehicles that do NOT tow or do heavy off-roading.
If anyone has first hand knowledge of using this transmission additive in a NORMALLY performing transmission, I would like your comments. It does not make intuitive sense to me that this is harmless if the additive changes the viscosity.