Warning: my oil looked like coffee at 6,000 miles, so I quit trusting the sticker
I used to follow the 7,500 mile sticker from the quick lube place in Fresno, but when I drained it at 6,000 the oil came out dark and watery like cold coffee. The used oil analysis guy at the shop showed me the viscosity had dropped way off spec, and he blamed short trips and city heat. Does anyone here actually trust those sticker intervals, or do you just change it sooner and skip the guessing?