Synthetic Oil

Oil of Choice

  • Castrol Syntec/Edge

    Votes: 254 8.4%
  • Royal Purple

    Votes: 344 11.4%
  • AMSOil

    Votes: 428 14.2%
  • Valvoline Synpower

    Votes: 174 5.8%
  • Mobil 1

    Votes: 1,077 35.7%
  • Other

    Votes: 737 24.5%

  • Total voters
    3,014

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RodRam

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Wow , I watched the video and I certinly would not say "I'll never use a RP filter again "

It's important to point out these filters wer NOT for our 5.7L Hemi engines.

Watch the video yourself , make your own determination.

For me , I'm confident the RP is just fine for our trucks !

I recently have been a RP10-48 Filter user .
The RP 10-48 Filters ( 2ea) I've installed have had a coil spring verses the stamped steel . The stamped steel is fine ;however, I do prefer the coil.

After watching the video , I will likely be giving the WIX filter a try next ( as recommended by "RodRam " in the past ) and RodRam just so happens to be the OP of this video .

Looks to me all of these filters are great filters , but I'll be trying out the WIX next .

It's not like I'm gonna walk to the autoparts store to change my RP10-48 LOL , I'll be running my current fill & filter till November.
I'm not saying the RP is bad just not what I want in a filter, you can see with the small flow holes add that to dense media for extended OC?I and you get lower flow rates, that it cant flow anywhere near as good as the wix-xp or the fram. I'm oldschool and I don't care what oil or filter I use I'm still changing both around 6k for full Syn or 4 k conv, sure it might go farther but anybody that tells you its better to run oil to 8-10k than change out at 6 is just a idiot. Oil gets contaminated from a myriad of things and you have no way of knowing unless you do a uoa for 30 bucks why not just put that money toward a sooner change? I don't care for frams media setup with the big flat gap it has or the stamped spring which I still think the RP 10-48 has but I will put that question to rest once and for all today when I cut one open and post the pics.
 
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R.L.K.

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I may throw on a Wix sooner than later just to see if my pressures change , I'll post up the results either way Sir !
 

RodRam

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be sure its the wix-xp, orielys has them if you have them in your area,
 

guardiannite

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I'm using a dram ultra and going to change oil today and going to try wix-xp and see if psi drops or not. Right now I'm at 60+psi on startup. ~58 at cruse and 38 at idle when oil is at 200F

This seems high but I'm also at 5k altitude and it's hot here. I have PP 5w-30 oil I right now too.
 

RodRam

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Ok welcome to Royal Purple Mythbuster's !:) Here it is what can I say... RLK I think what you thought was the coil spring is under in the inside cone is the full bypass not the anti drain back all filters have those .Note how small the flow holes are compared wth the 8 on a Wix xp and 10 on the fram ultra.
img_0410.jpg
img_0411.jpg
[/IMG]
 
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R.L.K.

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Ha Ha , I think you are right RodRam, I'm looking fwd to trying out the WIX-XP soon !
 

AFMoulton

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K&N seems like a good option too? I think I might try that one. Considering I just put a RP 10-48 on yesterday!
 

sicmadek

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Ok welcome to Royal Purple Mythbuster's !:) Here it is what can I say... RLK I think what you thought was the coil spring is under in the inside cone is the full bypass not the anti drain back all filters have those .Note how small the flow holes are compared wth the 8 on a Wix xp and 10 on the fram ultra.
img_0410.jpg
img_0411.jpg
[/IMG]

Did you have glue all over your pleats like in that video?
 

guardiannite

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Update to oil change used wix xp filter and mobile 1 0w20 AFE and now it starts up at 60psi cruise at 55psi and idle at 35psi. I didn't use same exact oil so numbers can be a little eschewed some. Do notice Eco light comes on much more and engine runs a lot better
 

RodRam

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K&N seems like a good option too? I think I might try that one. Considering I just put a RP 10-48 on yesterday!

KN may be ok but it has les flow holes like the RP& amsoil my whole point here was a noisy top end in these hemis needs high oil flow especially on cold starts even more so if you run thicker oil, the more holes the better. I'm sold on the wix xp it will be all I use from now on plus its 9.95 RP is 14.95 orielys also puts them on sale 2.00 off a lot of times with no limit on how many you ca buy
 

AFMoulton

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Ok welcome to Royal Purple Mythbuster's !:) Here it is what can I say... RLK I think what you thought was the coil spring is under in the inside cone is the full bypass not the anti drain back all filters have those .Note how small the flow holes are compared wth the 8 on a Wix xp and 10 on the fram ultra.
img_0410.jpg
img_0411.jpg
[/IMG]
I wonder what the Wix XP looks like inside, just curious if there is a difference since it is a filter for a Hemi vs a maxima
 

RodRam

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I wonder what the Wix XP looks like inside, just curious if there is a difference since it is a filter for a Hemi vs a maxima

They will be the same, filters are identical the difference is only in the size, threaded hole size and pressure spring that matches factory specs
 

raven3

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Looked inside a Wix XP , new from the box.
There is a hat section spot welded to the metal cap on the filter media.
The hat section supports the relief valve plunger & coil compression spring.
The spot welds are subjected to road vibration and could fail from metal fatigue.
The older Wix incorporated the relief valve in the base plate region rather than the dome with up dated version.
 

U&A

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Looked inside a Wix XP , new from the box.
There is a hat section spot welded to the metal cap on the filter media.
The hat section supports the relief valve plunger & coil compression spring.
The spot welds are subjected to road vibration and could fail from metal fatigue.
The older Wix incorporated the relief valve in the base plate region rather than the dome with up dated version.

Is the possible "failure" an educated guess or a known problem with the filter?
 

raven3

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Have no info about any failures.
Would not design a filter with small spot welds.
To my knowledge it is the only filter on the market with spot welds.
 

RodRam

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The ram truck is held together with spot welds :) sorry but id rather have something welded together than glued or pressed . Anyway you look at it any of these top rated filters they all are way more advanced and beat the crap the quick lube places use and when was the last time you heard of even one of them failing? Go buy you a cheap fram with paper ends and glued together media then you can have something to worry about! :roflsquared:
 
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AFMoulton

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The Fram Pro would be a good choice if you want flow! It has the most holes, and appears to be just as good
 
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