I had already bought a replacement chain & a gauge tool.
I check it every 100k when I lube it, but the 0.75 still won't drop in.
My local shop recons by the time it need replacing, the gears will need replacing as well.
I always use my gears instead of cranking up the power.
I never stand up on the pedals.
I don't ride in wet conditions.
I only use dry lube.
I have 2850 miles (4590 km) on a Shimano CN-HG601-11 chain. The .75 still will not drop in. Lube is Dumonde Tech original chain lube using proper prep. I constantly change gears while riding. Front ring is 42 tooth narrow wide and rear is Sram PG 1130 (11-42). Bike has capability of high power but seldom use above 500 w