I replaced the front struts and pads and rotors on a Hyundai Accent a couple months back. I used This Manual for the correct torque settings. I am not used to a range torque as I have worked on Chevy's with Haynes manuals where generally a single torque values is given. Not thinking too much about it, I used the max torque value for each bolt to torque everything down. I also used blue loctite on all of the fasteners (minus the lugs for the wheels) as well, for added safety. Doing some reading, some recommend setting the torque value a bit below the max range.
I had checked my torque wrench for accuracy when I did the work by hanging a 20lb weight off of it 15 inches back with the torque value of 25lbs ((15/12) × 20) = 25. Clicked.. moved setting up a tad, and it wouldn't click. Also, I always store at lowest setting too. So it seems the torque wrench isn't way off or anything.
I've put over 1,000 miles on the car since doing the work throughout the summer, from short trips on bumpy construction roads, to long trips on the expressway.
I came across a Youtube video that mentioned the torque value range, and they were setting it more mid range, between the two bounds. So this got me thinking, and I took a look at the manual and realized the ranged value. Putting more thought into it, I am wondering if there are any risks putting it at the high end of the range as a diy job.
First, do I need to worry about having the torque value at the high range? I would think engineers aren't going to put the torque value just below the bolt's shear point.. but I don't want to assume anything in this case.
Having done the work on a hot summer day, will cold weather create a hazard in anyway with the torque setting at the higher range? And I mean worse case.. Like the Vortex we had in the Midwest a couple years ago that had temps lower than -20 deg (without the wind chill).
I also want to note that this is the torque value for the wheel: "65.1 ~ 79.6lb-ft" My tire shop (Discount Tires) gives me a print out when I rotate the tires. And they have their torque settings on the lug nuts listed at 80lbs. Looks like they're going a little above the max.