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I know for sure factory spec on my honda civic/mazda cx-5/various subarus is all in the 29-31 ft-lb range as I do use a torque wrench when doing oil changes on those vehicles
I'm really curious about this, as I'll ultimately be changing my own oil and plan to torque the drain plug, because, well why not...have the torque wrench might as well use it.
Use of a torque wrench is good IMO.....what scale wrench do you use for such a low 20ft-lb torque?
I've got a few different sizes 1/2" drive and 3/8" drive...either one accomodates, but for lower torque I'd prefer the smaller drive, just assuming resolution may be better. I guess if you're trusting your torque wrench, then either should work, but then again they are just some basic craftsman ones, never been calibrated (have low miles), but it's not like I have some really high end torque wrenches that I keep cal'd. I actually like the deflector needle type manual ones, as I believe as long as the needle 0's out you know it's accurate. I have a really tiny 1/4" drive one to work on small parts on my carbon mountain bike with, where small torque values really matter because stuff is easy to break.
Autozone, Rockauto, amazon. It doesnt need to be vehicle specific. It can be if it gives you a peace of mind.
But. You dont need to change it everytime. You can probably use the same one the majority of the trucks life. Its best practice to change it every time but not necessary by any means. Changing it every few oil changes is probably adequate if its not weeping.
