Big jugs of Mobil1 15W-50 at Wal-Mart

[GTS Dean]

I was walking the lubes aisle this evening and found 5-qt jugs for the first time in 2+ years! Just under $28 per jug and quite a bit less than quarts. 0W40 was priced the same.

 

[MoparMap]

Walmart is usually one of the first places I go for oil as they have always carried Mobil 1 for a pretty good price. I've never had trouble finding the bigger jugs, though I haven't been in a while either. Finding the right weight has been a challenge from time to time though.

 

[Bonkers]

Ive also never had trouble finding 15w-50, even when stocks
went down, so i am guessing its a regional thing. Wish it were
easier to ship, i could have made a fortune in the Pinch...

 

[Steve-Indy]

2 years ago, I had to go to4 different Walmart in the greater Indy area to purchase 18 of the 5 quart jugs on Mobil 1. 0W-40. While loading my cart at the last store, I noticed a manager tag on a person in the old area. I inquired about the seemingly sporadic stocking of this oil. She agreed that it could be a hit and miss deal...stating that stores that sold more, got more...but on no particular schedule. Curious. Fact or fiction?? Who knows ??!!!

 

[AJT]

Thanks for the post. Going by this week. What filter are you using, Mobil 1?

 

[B4D4SS]

Order online and get free delivery. They pull stock from whatever store has the item. Otherwise, expect about 50:50 unfortunately.

 

[GTS Dean]

I usually run either NAPA Gold, or WIX filters. I sample at every change, or once a year, whichever comes first.

 

[Bonkers]

I usually run either NAPA Gold, or WIX filters. I sample at every change, or once a year, whichever comes first.

Thats such a bad idea, im really surprised its coming from
you Dean. Wix and Napa filters only have a 90psi bypass
for a motor with a 110psi startup. To each their own, but
running unfiltered used oil through the block makes my
skin crawl.

 

[GTS Dean]

If your car is hitting 110 psi, then there's an oil pump relief spring problem. The way people throw away hardly used premium synthetic motor oil and obsess over filters just floors me. To each his own.

 

[Old School]

The Wix has a bypass pressure of 8-11 psi. This is the pressure differential across the filters' element.

More Information for WIX 51085XP

 

[Bonkers]

The Wix has a bypass pressure of 8-11 psi. This is the pressure differential across the filters' element.

More Information for WIX 51085XP

Thats the filtering pressure, im talking about the
emergency Internal Relief Valve.. The bypass is on the top
of the filter, Wix, Napa, Mobil, Fram, ect... are all 90psi
which is the standard operating start up pressures of
95% of all motors made. The Viper V10s (and some
say the Magnum V10s too) have a cold oil start up
pressure of up to 110psi, especially if you are running
the proper 0w/15w oils in the cold. If you are running
ANYTHING but a Viper Filter then the few couple of
seconds after start up you are running unflitered, raw
oil directly back into the system until it self-regulates.
This has become one of my biggest pet-peeves here -
the difference between a Wix and a Viper filter right now
is $5.41 and yet so many here (some of the very same
people who gave me shit for YEARS because of my lack
of income,) think that Dodge is somehow trying to rob
them of their retirement with a filter specifically... and
only... designed for their precious cars. Its infuriating...

From SRT Direct: (you know unlike the guys who work on
their cars in their driveway, these are the HIGHLY educated
men and women who actually designed and built the motors.)

"The SRT oil filter for all the past engines and the new 22mm
inlet SRT filter for the Gen 4 and beyond engines share the
same characteristics.

We worked with many of the filter suppliers to get the best
features. Some fell out for various performance reasons but
we ended up developing the current SRT filters with one of
the mainstream manufacturers (it is different than their
commercial offerings - or at least was when we developed it).

The high flow oil pumps in our large engines (Viper is the
biggest) can overpower the internal relief valve. When this
valve opens it allows some of the high pressure dirty oil to
bypass the filter element in order to keep the filter from being
damaged. The SRT filters do indeed have a higher differential
bypass valve to make sure all the oil delivered to your
powerplant is clean. The housing is slightly thicker than many
of the brands out there to handle the pressure but is not the
thickest. The real thick ones failed our development testing
(fractured at the crimped flange). The media used was one of
the latest synthetics that allowed very fine filtration, more
debris capacity, and much lower restriction than our standard
Mopar filter (and just about every other filter out there). The
final result was clean oil to your Snake, all the time, with more
pressure to the internals where it is needed. I would fully
recommend using this filter in your beast, I do in mine.

Hope this info helps."

 

[Bonkers]

1992-2006 part number 05037836AA

2008-2010 part number 05038041AA

 

[GTS Dean]

Thanks for that. I'll keep right on doing what I'm doing.

I had my engine honed, re-rung and installed new valves in 2020 at 36k because I stupidly left a paper drip towel in the oil entry galley while installing new timing cover gasket and doing a full chassis detail. I forgot about it and the cam seized while idling in the driveway. My engine guy does a lot of vintage sports racing car and TA2 motors. He was very impressed with the crank, rods and pistons, especially with my history of extended M1 15W-50 drain intervals and ~5000 track miles with only an 8 quart pan. He installed the WIX XP filter on my engine because that's what he installs generally and that's what I use now.

 

[Steve M]

Pretty sure Wix makes the Gen 4/5 SRT filter.

Check out the Wix 57063.

Someone on the other site cut open a few different filters and found the following:

Mopar MO-041
22.62 PSI average (sample of 3)
38N (Spring force)
17.3mm (Spring diameter)
21mm (Spring free length)
8mm (Spring compressed length)
69 (pleat count)

Wix 57063
23.45 PSI (Calculated bypass)
38N (Spring force)
17.3mm (Spring diameter)
21mm (Spring free length)
8mm (Spring compressed length)
67 (pleat count)

Source info here: https://driveviperforums.com/forums/threads/29664-Oil-filter?p=455659&viewfull=1#post45565

 

[Bonkers]

Pretty sure Wix makes the Gen 4/5 SRT filter.

Yes, i think Wix is the manufacturer mentioned above,
but if you believe anything coming off that site, then
i really have nothing more to say to you.

 

[Steve M]

Yes, i think Wix is the manufacturer mentioned above,
but if you believe anything coming off that site, then
i really have nothing more to say to you.

That's probably for the best.

 

[AJT]

Good information.

Thanks everyone

 

[Goggles Pizano]

Lots of videos etc out there testing filters. Here's one https://youtu.be/rqDjCzyYUOU?si=YvTkT-2QCD3kmSRp

They are tons of variables involved.
Without cutting open the a statistical amount of the same filter and manually checking them, measuring oil pressure throughout the rpm range and at different temperatures, manufacturing tolerances, etc of different filters. This discussion becomes an academic one with people just stating what they read or were told.

 

[Slybri]

Yes, i think Wix is the manufacturer mentioned above,
but if you believe anything coming off that site, then
i really have nothing more to say to you.

Up to you what you believe or don’t; I posted that data after dissecting potential alternative filters back when the MO-041s were in short supply.

Also keep in mind, oil filter relief valves work in differential pressure (i.e difference in pressure between input and output sides of the filter). It has no direct bearing on the actual oil pressure. In the case of the Viper filters, they have ~23 PSI diff pressure rating, so on those 90+psi startups, the filter is much less likely to bypass than if it had say for example an 8 psid rating.

Have any questions on the testing or PSID? Let me know…

Sly