vs
Spark plug BERU or OEM Subaru
Reviews
Changing my sparkplugs for the first time (32k miles, yes it's early but I got a great deal on the plugs) and found that the stock plug in cylinder 4 actually had a ground electrode defect and was significantly thicker than normal. The car runs stronger than it ever has as this was likely causing extra timing pull.
Pros: car runs stronger
Cons: ground electrode defect
Vehicle:
Subaru
Mileage: 51500 km
im at 95k with the original plugs. no issues
Pros: no issues, lasted 95k miles
Mileage: 152887 km
I waited till like 100k to do my spark plugs on my 2013 Crosstrek, they were still good just not as efficient
Pros: lasted 100k miles, still good
Cons: less efficient at high mileage
Vehicle:
Subaru
Mileage: 160934 km
Just traded in my 2015 Forester with 219,000 miles and the original spark plugs.
Pros: lasted 219,000 miles
Vehicle:
Subaru Forester
Mileage: 352445 km
Normally that's a result of a failed spark plug seal. If you have no other problems I would put new spark plugs in it and check them at the next oil change.
Vehicle:
Subaru Impreza
I've been using beru rs7 plugs without any issues.
Pros: no issues
I ran Beru RS7 plus which are one step colder when I tuned stage 1 and they didn't last at all. Might have been under 10,000 miles. Recently went with NGK plus that APR reccomends for stage 2 and so far so good. No misfires since.
Pros: no misfires
Cons: didn't last
Mileage: 10000 km
I swapped out the oem plugs for Beru rs7 plugs when I went APR stage 2 at ~3k miles. The car ran well. Fast forward to the present with over 18k miles and is20 swap, and I noticed a few stumbles at idle. Nothing major but I figured I'd change them since APR recommends 10-15k mile intervals (visually the Beru plugs looked fine).
Pros: car ran well
Cons: stumbles at idle
Mileage: 18000 km
Good luck doing spark plugs
Cons: difficult to replace
Vehicle:
Subaru
a spark plug job on an STI can be a 6+ hour job :thumbdown:
Cons: spark plug job difficult
Vehicle:
Subaru
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