2023 RX350 AWD Lug Nut Torque - FYI
#16
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Proper procedure would be to install the nuts to a torque that may not be precise but that you KNOW is well below the proper amount, then use a manual torque wrench to properly bring them up to the proper torque.
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As a result, I always loosen, then tighten, the lug nuts with my own torque wrench when I get home from a tire/wheel service.
They don't warp, pad material fuses to the rotor causing issues.
This happened a LOT more often with the company cars I used to drive, the shop would always use the cheapest pads when servicing those cars.
Just my 2Cents.
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#19
Instructor
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...
Regards the possibility of pad material transfer after a hard stop (end of freeway ramps, or after stopping at the bottom of a steep hill near our house), I developed 'muscle memory' to stop at least a car-length back in these situations...then creep along while waiting to go.
This happened a LOT more often with the company cars I used to drive, the shop would always use the cheapest pads when servicing those cars.
Just my 2Cents.![Embarrassment](https://www.clublexus.com/forums/images/smilies/redface.gif)
Regards the possibility of pad material transfer after a hard stop (end of freeway ramps, or after stopping at the bottom of a steep hill near our house), I developed 'muscle memory' to stop at least a car-length back in these situations...then creep along while waiting to go.
This happened a LOT more often with the company cars I used to drive, the shop would always use the cheapest pads when servicing those cars.
Just my 2Cents.
![Embarrassment](https://www.clublexus.com/forums/images/smilies/redface.gif)
#20
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I don't trust the techs to torque correctly either. I tighten with a torque stick rated to 80 ft/lbs, then use my torque wrench to set @ 103ft/lbs. Then after 50-100 miles I recheck with torque wrench.
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Carbuff2 (11-14-23)
#21
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When over tightening lug nuts it will warp the rotor, when heat builds up it warps more. The reason is the thickness of todays rotors are a lot thinner then they used to be. Heavy braking will also do a number on the rotors, especially when going down hill, if you tend to brake a lot, or a mountain. The best thing is to buy quality rotors and pads, this should fix the problem.
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WellsB (11-14-23)
#22
Instructor
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Your explanation does not make sense. How does tightening a bolt that does not contact the rotor warp it? Maybe that was the case in the early days of discs where rotor/hub interfaces were combined, but today? How does heat build-up as a result of overtightening a bolt? I do get that unequal torque on bolts could create issues since under-tightened areas could be affected by friction heat, but if all the bolts are tightened equally...
Riding the brakes can build up heat for sure, but that has nothing to do with lug bolt torque.
Riding the brakes can build up heat for sure, but that has nothing to do with lug bolt torque.
#23
Instructor
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Speaking of bedding in brakes... (I even do this for my disc-equipped bicycles as it makes a huge difference in mountain bikes especially) https://www.autozone.com/diy/brakes/bedding-brakes
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Carbuff2 (11-14-23)
#24
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"In theory, there is no difference between theory and practice. In practice, there is."
The reason is the thickness of today's rotors are a lot thinner then they used to be.
I know that cheap "white box" aftermarket rotors are more prone to vibration than the good brands. I got in the habit of buying the Good Stuff when I was tracking our sports cars.
#25
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It is very annoying that every time I go to dealer who does have good customer service, I always have to double check the work tech does. Perfect example came in for my 10K at 5K, and both my coolant levels were at low mark, zero top off and it was very obvious. However they filled up windshield fluid. I always check oil after the change for plugs and caps and levels. Never thought of the wheel lugs torque, but I always check that lug is tight by my hand bc seen that before too.
I do like going to dealer bc if they mess up at least it documented and on them for fix, still annoying to be paying a lot and worried about checking their work. Worst case this was master tech as he had his name over the lift with his years of service.
I do like going to dealer bc if they mess up at least it documented and on them for fix, still annoying to be paying a lot and worried about checking their work. Worst case this was master tech as he had his name over the lift with his years of service.
#26
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Costco tire center in my area always uses a torque wrench after they lower the vehicle down to the ground, as does any good tire shop. With regard to comments and hints to bedding in new brake pads, this is a critical procedure and I always follow this after changing out pads on any of my vehicles. It's good advice and can prevent issues down the road.
#27
Intermediate
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It is very annoying that every time I go to dealer who does have good customer service, I always have to double check the work tech does. Perfect example came in for my 10K at 5K, and both my coolant levels were at low mark, zero top off and it was very obvious. However they filled up windshield fluid. I always check oil after the change for plugs and caps and levels. Never thought of the wheel lugs torque, but I always check that lug is tight by my hand bc seen that before too.
I do like going to dealer bc if they mess up at least it documented and on them for fix, still annoying to be paying a lot and worried about checking their work. Worst case this was master tech as he had his name over the lift with his years of service.
I do like going to dealer bc if they mess up at least it documented and on them for fix, still annoying to be paying a lot and worried about checking their work. Worst case this was master tech as he had his name over the lift with his years of service.
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autotech13 (11-16-23),
StefanoS (11-15-23)
#28
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Looks like lug bolts are used now instead of lug nuts.
Just picked up our new 2023 RX350 AWD for my wife. I typically check the torque on the lugs anytime we get a new one or the dealer services our vehicles. Over tightening or inconsistent tightening can sometimes result in warped rotors and brake chatter.
All of our previous RX's called for 76 FT LB. lug torque including our 2020.
This new RX calls for 103 Ft LB as per page 505 in the Owners Manual. Quite a difference. BTW I also found 17mm to be the socket size.
Just wanted to share this as the torque info is kind of buried in the manual section "7-2 Steps to take in an emergency".
All of our previous RX's called for 76 FT LB. lug torque including our 2020.
This new RX calls for 103 Ft LB as per page 505 in the Owners Manual. Quite a difference. BTW I also found 17mm to be the socket size.
Just wanted to share this as the torque info is kind of buried in the manual section "7-2 Steps to take in an emergency".
#29
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