OTHREETLS

Just changed spark plugs on my 03 TL type s. I was checking out the forums and found this:

Acura TL Premium NGK PZFR5F-11 Denso PKJ16CR-L11

Acura TL-Type S NGK PZFR6E-11 Denso PKJ20CR-M11

My mechanic installed the PKJ16CR-L11 ones. I have a type s. Will this be a problem?

Skirmich

Depends on how much you push the car.. He installed the wrong plugs for your Compression.
If you daily drive it and rarely go WOT then probably you will be fine just get slightly worse MPGs.

OTHREETLS

Damn. I do daily drive it and don't go wild on it usually. Guess I'll just stick with it. Thanks!

01tl4tl

Ask him WHY the wrong plugs are in your car!
Mechanics should know to match plug numbers, and order the right parts of course