104067 Apr 2026

Based on the reference code , there are two primary discussions found in online forums:

, is more practical for high-mileage engines than expensive "fancy" plugs, as performance gains from premium options are often negligible on older systems. 98 OBW spark plug question - Ultimate Subaru Message Board 104067

: On the Ultimate Subaru Message Board

, topic 104067 discusses the best spark plugs for older vehicles like the 1998 Outback. The consensus among community members is that using standard high-quality plugs, such as NGK GP Platinum (BKR5EGP) Go to product viewer dialog for this item. Based on the reference code , there are