Spark plug AC DELCO or OEM Subaru

im at 95k with the original plugs. no issues

I waited till like 100k to do my spark plugs on my 2013 Crosstrek, they were still good just not as efficient

Just traded in my 2015 Forester with 219,000 miles and the original spark plugs.

I replaced them with AC Delco 14 Platinums, and it seems to be running better.

Just did mine with ac Delco, gapped them in advance and running great!

In my personal experience (99 suburban 6.2l 383) AC Delco spark plugs are the way to go

I bought six ac delco spark plugs from Rockauto and half were made in France and half were made in the US. There are very slight differences like the diameter of the electrode and how deep the plug is on the end that goes into the cylinder. Even one of the US plugs is different from the other two.

ditch the delco plugs, they are trash. And delcos are shit plugs.

My 6.0 never ran right unless I used AC Delco. And specifically whatever the current equivalent part number is to what the manual says.

I initially got the P0101 code and did the obvious - replaced the MAF sensor. No change, same codes. Goodbye $100.