like, thicc enough that I could jump over a tractor trailer without melting something. plus I can stick weld with them off of my own battery if need be.
I always have carried a set- even if I owned something new. But it's peace of mind since I own a 1998 with 180,000 miles on it. (The boat battery is also an extra plus.)
But they came in handy rescuing a 2013-ish stuck in the drive-up pick-up lane at Wegman's. I carry them for me and use them for everyone else. which reminds me... I need a new fire extinguisher...