My owner’s manual says to use NGK BCPR5EY, which I’ve always used as replacement spark plugs and they seem to work ok. But I’m planning to replace the plugs and do a mini-tune-up this weekend, and the auto parts store tells me their computer says it should be NGK BKR5EY-11.
The parts stores seem to have changed they way they do things. It used to be that I’d just grab the plugs from the shelf, and if they didn’t have the # I was looking for, they’d have a cross reference to a different brand, like NGK to Motocraft or NGK to Bosch, etc. Now, when I ask them to check the cross reference to make sure these parts are compatible with my year/make/model, they don’t seem to have a way to check. All they have is what their computer tells them.
I’d like to use the plug the owner’s manual recommends. But the auto parts store can’t even tell me if they stock the NGK BCPR5EY. They can only tell by the code the computer spits out, which isn’t by that number. It’s by something like “6204”. That’s how they find it. Not by the NGK #. The guy said he’d have to go in the back stockroom and look at all the boxes of all the spark plugs to see if they had it, and he was to busy to do so.
Anybody else have this problem? Anybody know the difference between these two spark plugs? Are they interchangeable?