need some oil help
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Senior User
Joined: Jul 2006
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From: Spotsylvania, VA
need some oil help
It was time to change the oil in my truck; first time I was going to do so since I bought this truck. So I go to the store, get the filter and some Royal Purple and get home to find out that the guy that owned it before me had an Amsoil remote bypass filter setup.
I went ahead and bought new filters from Amsoil and of course the guy I talked to from Amsoil suggested that I use Amsoil oil with their filters. I figured it wouldn't make that much of a difference. But I decided to do a little research, and I read from Amsoil that their filters are basically super filters. And I read on an independent website that the Moly in Royal Purple can clog filters. Do you think I'll have issues? Should I just take back the RP and buy some Amsoil oil?
Thanks in advance for the help guys!
I went ahead and bought new filters from Amsoil and of course the guy I talked to from Amsoil suggested that I use Amsoil oil with their filters. I figured it wouldn't make that much of a difference. But I decided to do a little research, and I read from Amsoil that their filters are basically super filters. And I read on an independent website that the Moly in Royal Purple can clog filters. Do you think I'll have issues? Should I just take back the RP and buy some Amsoil oil?
Thanks in advance for the help guys!
Logistics Pro
Joined: Jun 2005
Posts: 4,243
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From: AZ
Molybdenum in oil cannot come out of suspension...it use to be possible (many years ago), but no longer. In fact, many people with bypass filtration using Delo400 and it is relatively high in molybdenum. That said, if I remember correctly, there is zero molybdenum in Amsoil. Personally, I like oils that have high moly readings.
Posting Guru
Joined: May 2007
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I have the Amsoil bypass and run Amsoil in everything in this truck. Try it , you will like it ,or better your truck will like. If you do UOA it's hard to tell how long you can go on oil change, because of the bypass filters, nanofiber in the filters is the best in the world!!
Hotshot
Joined: Feb 2007
Posts: 10,499
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From: Sterling Heights,Mi
Being Lazy here,
Molybdenum in oil cannot come out of suspension...it use to be possible (many years ago), but no longer. In fact, many people with bypass filtration using Delo400 and it is relatively high in molybdenum. That said, if I remember correctly, there is zero molybdenum in Amsoil. Personally, I like oils that have high moly readings.
Why do you like the high moly Neal?
Smokin
Joined: Jun 2006
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used oil analysis. Independent labs collect used oil samples of various brands, and analyze soot levels/lubricity/breakdown.
I'll see if I can find an example.
on edit: UOA's also refer to independent owners sending in individual oil samples to have companies such as Blackstone rate the condition of the oil after use.
https://www.ford-trucks.com/forums/6...ccurate-2.html
I'm obviously no expert. lol.
I'll see if I can find an example.
on edit: UOA's also refer to independent owners sending in individual oil samples to have companies such as Blackstone rate the condition of the oil after use.
https://www.ford-trucks.com/forums/6...ccurate-2.html
I'm obviously no expert. lol.
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Logistics Pro
Joined: Jun 2005
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From: AZ
Pat, molybdenum (actually MoS2 - molybdenum disulfide) has some real interesting characteristics, an affinity to metal...coating it...protecting the surface as microscopic overlapping platelets (down in the sub-micron range). It is added to oil by refiners as a wear preventative. My summer oil, Delo 400 has a relatively high amount (101 PPM) of MoS2, and my winter oil (Rotella syn) has about 60 PPM. There is a pretty fair treatise on molbdenum di-sulfide here. For what it is worth (because it is anecdotal), I also have run these oils in Class 8 trucks for over 2 million miles with no oil related failure...
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From: northern Michigan
If you are using any sythnetic oil like amsoil, you don't change on the scheduled intervals, instead you send in an oil sample for analysis and if it is still good , you change the filters and add enough new oil to maintain what you lost in the filters. The synthetics advantage with the bypass filtration is only realized in this method, otherwise using it is cost prohibitive. I have read articles of semitractors with this setup on the original oil after 500,000 miles.
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Senior User
Joined: Jul 2006
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From: Spotsylvania, VA
Yeah for me the longevity in the tank isn't a big deal. And I've been reading up on Moly (thanks Neal) and I like what I'm reading about how it works. My problem is that I read that Moly particle sizes can be as large as 8 microns and the Amsoil bypass filter setup touts the fact that it has 98.7 percent efficiency at 2 microns and specializes in filtering very small particles.
I also found a table that does show that Amsoil is far superior (actually all of the literature I read on Amsoil sounds biased and like its the greatest stuff ever), but I feel like the big gimmick for Amsoil is the time between changes. Well not gimmick, per say, but thats its selling point. Thats just not that important to me I guess. And I was really impressed by what I read about moly. But I'm thinking that I'll end up going the Amsoil route for now, since thats what my truck is already set up for.
Thanks so much for all your advice though!
I also found a table that does show that Amsoil is far superior (actually all of the literature I read on Amsoil sounds biased and like its the greatest stuff ever), but I feel like the big gimmick for Amsoil is the time between changes. Well not gimmick, per say, but thats its selling point. Thats just not that important to me I guess. And I was really impressed by what I read about moly. But I'm thinking that I'll end up going the Amsoil route for now, since thats what my truck is already set up for.
Thanks so much for all your advice though!
Posting Guru
Joined: Mar 2007
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From: East Peoria, IL
Have you checked into Schaeffer's oil? It also has a high moly content. And its not as rediculously priced as Amsoil. In fact, the full syn. is cheaper than Rotella syn. by a couple dollars.
Post Fiend
Joined: Feb 2007
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From: Dallas-Ft. Worth
Now that Syn Rotella is friggin' $22/gal at WM, I will be looking hard at Schaeffer 9000 on my next OC. The PITA of getting it is a bit more tolerable now that I can't get a decent syn oil at WM for $16 anymore. 
Logistics Pro
Joined: Jun 2005
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From: AZ
PS...Schaeffer's 9000 5-40W full synthetic has 204 PPM and is considered by many the best oil for Powerstroke engines.
Posting Guru
Joined: Mar 2007
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From: East Peoria, IL
Yes, after Rotella spiked up, Schaeffers is a better choice IMO. I fully believe it is a better oil, plus I get free UOA through my dealer. Guys in the area run 12k+ with guidance on UOA.
Also, I got a few of my buddies on board. We are all trying it out. We bought 25 gallons of 9000 that averaged out to $19.11 per gallon, tax inclusive. Considering Rotella is $2-3 more per gallon PLUS tax, its a better bang for the buck, especially taking into consideration oil longetivity.
Also, I got a few of my buddies on board. We are all trying it out. We bought 25 gallons of 9000 that averaged out to $19.11 per gallon, tax inclusive. Considering Rotella is $2-3 more per gallon PLUS tax, its a better bang for the buck, especially taking into consideration oil longetivity.
