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Posted

This is the easiest way I know to explain this and it still may not come across in writing.  Take you fingers and over lay your right hand at a 90 deg angle to your left hand making a mesh.  Imagine these are the paper fibers and the resulting holes.  Now imagine the same area made of fishing line.  Imagine increase in the number of holes while keeping the same size hole.  This is what the difference between paper an nanofiber is like.  With this, I can easily see a lower pressure drop in the Amsoil filter.  Enough to make the lower bypass pressure equivalent or better than the higher GM spec bypass pressure I don't know.  But I'd love to see some actual testing.  I'm still convinced the Amsoil filter is superior and will continue to use it unless real testing shows me otherwise.  I would also like to see just what the pressure drop of a variety of filters is.  With all of the tight clearances in the engine I find it hard to believe the filter is 50% or so of the pressure drop.  Assuming the dash gauge is at least in the ballpark, these engines run at about 40 psi, even cold.

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Posted
7 hours ago, Mike GMC said:

With all of the tight clearances in the engine I find it hard to believe the filter is 50% or so of the pressure drop.  Assuming the dash gauge is at least in the ballpark, these engines run at about 40 psi, even cold.

The pressure on the dash is around 40 psi when running normally. You wouldn’t be bypassing. You go into bypass when your psi gauge reads in the 65-80 or thereabouts. (Put your foot down and you will see the gauge goes that high without much effort). Or it can go into bypass when the oil gauge reads as little as 35 at idle on cold engine startup just depends. 

 

I think I have seen a dp test across a filter but never a test that compares filters back to back. 

 

 

Posted
10 hours ago, dieselfan1 said:

Anyone get their oil changes at Valvoline Instant Oil Change?

I've been going there for the last few years using Valvoline full synthetic, and I heard they use a Purolator filter with a Valvoline label. Anyone know the truth?

If it wasn't such a pain in the ass to dispose the old oil I'd just do it myself . I just might start though they charge $110 with a $10 off coupon . Rip-off if you ask me. I'm not going to use my two free oil changes from the dealer either. Took 2 hours last time I went there.

The lube and oil company's, Valvoline, Jiffy Lube etc. use a fleet filter. These are filters that meet OEM spec but better filters are available.

IMO they are fine for use if not used for extended oil change intervals. Hell, there are millions of vehicles using these filters.

 

A lot of these fast lube joints have a commercial account with a local auto store that supplies their oil filters.

They are made by Wix, Purolator, Champion etc. The ones at Advance Auto are made by Wix I believe with the Car Quest logo on them.  

I have used them for years. Call any auto parts store and ask for a fleet oil filter. They are sold by the dozen and come in a cardboard  box of 12.

 

I have been using the R84060 from Advance since buying my 2012 truck used. Retail for a single filter is $4.00. I bought a dozen for $2.16 each.

I will be switching to a Wix 57045 on my next oil change. This filter is longer than the stock Wix 57060 for more filter media, same oil pressure bypass and the cost difference in minimal.

This filter is not spec for the new generation GM V8's.

 

I bet if you searched on the Wix web site you can find a filter that is longer than the stock 10255XP.

 

:)

 

 

 

 

 

Posted

Depending on who is making the fleet filters, some can be a more one size fits all than actually designed with the OE in mind. Working for AAP for 6 years I can tell you at this point now that they are using the second round of Carquest filters they are made more specifically to the OE. When they used Promotive fleet filters and when they first switched to the Carquest branded filters they were more of a generic, and then shops could stock less filters. Meaning it might fit as far as thread pitch and gasket are concerned but depth of the filter could be very different that what the OE calls for. 

 

 

Also, my own 0.02 - sometimes nothing beats the OE filter. (even knowing that there are only so many oil filter companies that truly make them out there).

 

 

Posted

I agree.

But I used fleet oil filters and dino oil for years with no motor issues on our vehicles.

I did 3 K mile oil and filter changes though.

 

:)

Posted
12 hours ago, dieselfan1 said:

Anyone get their oil changes at Valvoline Instant Oil Change?

I've been going there for the last few years using Valvoline full synthetic, and I heard they use a Purolator filter with a Valvoline label. Anyone know the truth?

If it wasn't such a pain in the ass to dispose the old oil I'd just do it myself . I just might start though they charge $110 with a $10 off coupon . Rip-off if you ask me. I'm not going to use my two free oil changes from the dealer either. Took 2 hours last time I went there.

how is it a pain to get rid of your used oil?

guess it may depend on state IDK.

here any automotive place has to take used oil free of charge.

O'Reilly also takes oil for free and used filters for free.

Posted

The 0-20 water they spec for these trucks isn't going to have much trouble getting through a filter even when cold.  Unless you do a cold start and go right out and floor it to redline, I highly doubt you'd go into by pass.  Pressure drop is related to flow rate, not directly to overall pressure.  At high flow rates, the pressure drop will be higher through any given filter, as long as the viscosity stays the same. All things equal, I would much rather make sure I always have adequate flow.  The cleaner it is the better, but low flow is far more damaging than less than perfectly clean oil.  Keep in mind that the variable valve timing and the DOD all operate on flow not to mention what happens if you starve the bearings.

Posted
12 hours ago, Timmayy! said:

My guess is that tech was unaware of the spec change of the filters for the 5.3. 

 

If you look look at the pf63 it’s bypass pressure is 15psi (which is what the amsoil filter is per my questioning amsoil tech) 

 

the pf63e bypass pressure is 22psi. There is a bulletin passed around about gm saying that using and oil filter with a bypass setting of 15psi or less could introduce particles and increase engine wear. 

 

When end I called the amsoil tech I didn’t ask whether the ea0 17 would work for the 5.3, rather I asked specifically what its bypass specs were. He had to go look it up from some other manual but he informed me the bypass pressure setting was 14-16psi. 

AMSOIL tech is aware.  The thing is the PF63 is discontinued and what you find online and  on store shelves is NOS (new old stock). In time you will not be able to find a PF63 once they are all sold.  The replacement is the PF63E.  So yes, if you asked about the PF63 it had the old by-pass pressure setting.  If you had asked about the EaO17, then Tech would have informed you that it has the required by-pass setting per GM.

Posted
11 minutes ago, Black02Silverado said:

 So yes, if you asked about the PF63 it had the old by-pass pressure setting.  If you had asked about the EaO17, then Tech would have informed you that it has the required by-pass setting per GM.

I never mentioned anything about a GM truck or a PF63 to the tech.

 

I asked if he could give me the bypass pressure setting for an Ea017. He said he would have to check with someone else on where to find it but he could. He left the phone for about two  minutes came back and said the pressure setting for an Ea017 was 14-16psi.

Posted
1 hour ago, Mike GMC said:

Pressure drop is related to flow rate, not directly to overall pressure.  At high flow rates, the pressure drop will be higher through any given filter, as long as the viscosity stays the same.

Pressure drop is related to flow rate which is directly related to overall pressure. The flow rate is driven directly by the head pressure created by the oil pump. Higher supply pressure higher flow rate greater DP across the filter.

 

I do not have the answer either way whether or not the nanofilter decreases the resistance factor in turn lowering the DP.

 

But i think this argument is somewhat similar to people switching to 5w-20 or 5w-30 after warranty is up. I'm in the boat that i am going to follow what the engineers decided at GM to run 0w-20. The same way that i am going to follow their by-pass pressure setting recommended. Some agree some do not.

Posted
18 minutes ago, Timmayy! said:

I never mentioned anything about a GM truck or a PF63 to the tech.

 

I asked if he could give me the bypass pressure setting for an Ea017. He said he would have to check with someone else on where to find it but he could. He left the phone for about two  minutes came back and said the pressure setting for an Ea017 was 14-16psi.

OK, thanks.  Looks like I need to call and make sure they get their information straight since they told me that it is 22psi.  This was also about 6 months ago that I called.  Thanks for the heads up.

Posted
13 hours ago, dieselfan1 said:

Anyone get their oil changes at Valvoline Instant Oil Change?

I've been going there for the last few years using Valvoline full synthetic, and I heard they use a Purolator filter with a Valvoline label. Anyone know the truth?

If it wasn't such a pain in the ass to dispose the old oil I'd just do it myself . I just might start though they charge $110 with a $10 off coupon . Rip-off if you ask me. I'm not going to use my two free oil changes from the dealer either. Took 2 hours last time I went there.

I don't understand why it's "such a pain in the ass to dispose of your old oil" (and oil filters)?  Pour it into plastic containers such as the gallon containers that new oil comes in, or rinsed out gallon milk jugs, 2L pop bottles, etc.  Put them in a cardboard box and haul them off. 

 

All of the auto service dealers, tire dealers that do oil changes, WalMart, Sams Club, auto parts stores (AutoZone, Advance, OReillys, etc.), and bulk oil dealers around here will gladly take if off your hands for free, as they sell the oil to oil reclaimers, who in turn sell it to refineries.  

 

Of course, if you live in some Draconian state or territory that does not allow this (never heard of such a place, personally, as the tree huggers love their recycling), then you've got bigger problems.  

Posted
18 minutes ago, Black02Silverado said:

OK, thanks.  Looks like I need to call and make sure they get their information straight since they told me that it is 22psi.  This was also about 6 months ago that I called.  Thanks for the heads up.

If you do call let me know what they say. I'm curios about the discrepancy now.

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