Are STP oil filters good? I’ve been using K&N but looking for a cheaper alternative.
No. They are awful, actually.
Many cheaper options do a much better job.
Go for Wix, NAPA, Purolator, Mobil 1, Fram Xtended Guard, etc.
Didn’t I see Scotty use one in his recent oil change video?
filter construction is poor, and the end caps delaminate too easily.
The is how much 30 micron contamination passed THROUGH a brand new STP filter:
FRAM for comparison:
(the clean white paper represents how clean it makes your oil)
On my Honda and Toyota I've been using their oem oil filters which I always buy a few whenever the dealer has it on sale. But for other cars I've used Fram oil filters and they're pretty good so I would suggest Fram if not using oem ones.
Even though it's a bit more expensive, I always use OEM filters.
If OEM was not available, I would use Mobil 1 or Purolator.
in some cases, I think the Purolator will be better than OEM. And the Mobil 1 definitely is. They're very good.
Since you vouched for them, I believe it.
I checked my local auto parts store, and I paid $9.99 for the OEM, and the Mobil 1 is $15.99. I'm surprised at the pricing.
STP is an under rated brand. I use their octane and it has the active ingredient of jet fuel.
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you mean kerosene?
This guy tested it in an engine, and it just left more deposits, and caused knock.
https://www.youtube.com/watch?v=MTlNjRDOJ5E
It depends what kind of gas and oil you use in the first place
STP octane booster contains
Petroleum distillates (JP5 Jet fuel) 008008-20-6 60-90
Tricarbonyl(methylcyclopentadienyl)manganese 012108-13-3 1.0-5.0
Mesitylene (1,3,5-Trimethylbenzene) 000108-67-8 1.0-3.0
Solvent naphtha, petroleum, heavy aromatic 064742-94-5 0.5-1.5
Naphthalene 000091-20-3 0.5-1.5
it depends on your oil? ... right
I use OEM or K&N if I can't find OEM filters for my Fords and my classic Pontiac. Go to Wally World. The auto parts stores charge $9.99+ for Motorcraft oil filters that fit my truck and Mustang. They can be had for $3.98 at Wal-Mart. Oil is also $10+ cheaper. I'd pay at least $56 for full synthetic oil and a filter at the auto parts store, Wally World is maybe $35 at most.
