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What can you contribute towards establishing a maintenance/oiling/cleaning routine for someone like TiGeo or myself, trying to get extremely high quality filtering while deviating from the factory intake setup?

I do have an ETS intake with AFE Pro Guard 7 filter (hybrid oiled cotton/synthetic). I don’t believe there are any intake leaks. I will copy some stuff I wrote on the last 2900mi run below. In the middle of this run the dealership had one rocker cover off to replace/reseal leaks, I hope that is...

As promised earlier, ran the same oil change out further for fuel dilution tracking and to see how the viscosity held up. Also to wait until the new HPL got delivered. Two bottles of Subaru fuel cleaner were used at the end, one ran through the intake for an hour at 2000rpm (which ended up with...

What do you like gapping them to?

For a second I was thinking since the power and hence cylinder pressure and rod bearing loads are so different between them, I could use a thinner, lower HTHS oil to have better low temperature startup wear. Then I thought about it longer and since the primary thing I would like to...

5W-30 Euro No VII Assuming the FB doesn’t end up being an oil drinker I will use UOA to determine how long is best for the interval, probably gather data every 2k starting at 6k. I just took a 3k UOA on the FA and it was good, better than I expected dilution wise, so I will probably try moving...

The first sample line in that report, it’s also the same oil and viscosity, right?

I don’t know. This is my first GDI car and by far the most expensive one I have ever bought new (ish). Before all the reading I put myself up to during this last week about fuel dilution, I thought fuel in oil = bad no matter what. I’m now starting to think a viscosity based approach while...

Link to UOA I have also realized after considering the difference in rod bearing size and loading, and oil pump size, between the FA24DIT and FB25 - along with the elephant in the room of DI vs PFI, that I should run different oils in these if I want to optimize each in their use case. So thank...

This was following three 3K loads of 5W-30 in the same Motul line. I assume its slightly thicker due to the remnants of 5W-30. This is my first sample on this car. All external mechanical evidence is that it is a very happy, healthy engine. It has a tune bumping boost to 17ish from the stock 8...

I have that information. The white media depicted in the start of this thread is almost certainly not the same. I have two Carquest Premiums, one Microgard Select, and one Pentius all in oversized Subaru fitment cut apart on my bench right now (thread incoming?) and I almost bought this...

Is there a way to know the 20micron and 25micron efficiencies compared? Apologies if I can’t find it summarized

I am not clear whether this media is considered better than the one in the Microgard/PG/Pentius Vietnam filters, any takers on that?

Suppose I'm sold that I want to do HPL and am trying to figure out good intervals. Dave and I did not discuss intervals. I believe I see your point, see how that could look bad. To be honest any time I get on this forum it takes any certainty I had/have about what I have learned from my cars...

By "new" WRX I meant VB, with FA24 My 420 wheel EJ has been on 5W-40 Ravenol for years

Hey all, I generally don't post, just read, but here is my situation. I have a 31k 'new' WRX - GDI, turbo, about 30% more cylinder pressure than stock (17psi boost). So far I have been giving it Motul X-Clean EFE+ 0W-30 or 5W-30 and factory filters every 3k miles. It is my first GDI engine and...

I’m on day 3 of “testing” the HPL in the 5 speed+LSD in mostly 30deg cold start temps and so far it shifts better than either Shockproof, 2/3 Gear 300 - 1/3 Shockproof, or Subaru HPGO. It’s been filled in the STi 6 speed too but that hasn’t been driven enough to say much. I want to get some...

I’ve thought of that too, I am really hoping that I find the same situation and my concern is all for nothing. With that said I had never heard of consumption accelerating then decelerating with no mechanical changes ever with any car in the 20+ years I’ve been doing this, nor can I think up any...

That is the plan Dave hatched when we talked, I imagine by the time another few thousand miles have passed with religious checking of levels and by then it’ll be more 5W30 than 5W20 (if it keeps disappearing) and I’ll have much more of a leg to stand on regarding staying with HPL or trying to go...

Getting my filter cutter back from the friend I lent it to tomorrow, and have an Amsoil filter coming tomorrow too. Will have it cut open Thursday at this rate