Spark plug gap chart by vehicle with exact specs, torque values, and plug types for 80+ makes and models
For most subaru forester models with the 2.5l engine, expect spark plug changes around 100,000 miles under normal driving
Turbocharged variants tend to need changes around 60,000 miles.
Subaru specifies spark plug replacement intervals based on extensive engineering testing to determine when plugs typically degrade beyond acceptable performance
I just crossed 120k and picked up some double iridium plugs to replace the single iridium tip plugs that come from the factory
Double iridium are the plugs that toyota and lexus install for.
Iridium spark plugs typically don't last 100k miles in a subaru
Be sure to use top tier gasoline
The recommended spark plug gap for subaru forester models varies depending on the engine type and spark plug type
Consult your owner’s manual for the specific gap recommendation.
New plug gap approx.040 in, old plugs were almost twice that
(2004 civic 2.0l si, for reference) amazon and autozone directed me to use ngk plugs, but i stumbled on a cite that.
While 100,000 miles is a common benchmark for spark plug replacement, it’s not a hard and fast rule
Your vehicle’s specific make, model, and driving conditions can influence the lifespan of.
A lot of new platinum spark plugs will be damaged if you try to gap them like you would for an older car
Gapping a spark plug is going to become one of those traits that we all lose the skill for.
I just noticed on rockauto, that the ngk iridium have a.032 gap, while autolite and skp, also iridium, have a.044 gap
The ngk are listed as oe spark plug is high ignitability
Now, there's a problem with that
Considering that it starts out.
The '11' at the end of the part number means that it uses ~ a.044 gap (1.1mm, hence the 11 designation)
I'd check the gap on the ikh20 and see what's up
Most of these plugs aren't made to.
1 a auto has a nice you tube video on spark plugs for the forester but remember you don’t need to remove the wire connectors