Anyone tried Royal Purple

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Lol I was just argueing with someone over Trufilter. It's a stainless-steel mesh media cleanable filter. Seems cool, but there isn't much data on how it compares to higher-end synthetic replaceable filters, it only compares itself against the "norm" aka Paper Filters. Once the proven data is out, I'll prob buy one. I'm suprised K&N isn't making one...it seems like something they would jump at.

i thought the same thing, i looked for it on k&n. if it was all that great they would have jumped on it. time will tell.
 
how about each of you running a different oil takes a sample at the same mile interval and sends it to these guys: Blackstone Laboratories - Gas Engines

sure you can say the miles on the vehicle, the driving style etc etc can all contribute but it would sure be more "scientific" than the banter going on here... maybe there will even be a post with out the caps lock on? :flipoff2:
 
plenty of freedom to post what you want but no personal attacks are allowed here. let's keep this a technical discussion to benefit all the FJC members. thanks guys and please continue w/ the RP discussion :cheers:
 
I hate censorship...BUT, maybe you should remove the :flipoff2: smilie (it's kinda oxymoronic)!

Just a suggestion!;)

BTW-IS it grapejuice??

:cheers:

I agree to an extent, but don't know if that smilie is meant to be offensive...heck the cartoon has a giant smile on his/her face!!

back to royal purple. i have always paid attention to where my engine heats up to. to bad i don't know the exact temp of the engine...but over the last week i have seen a dramatic drop in engine temp. you all seeing the same thing running synthetics?
 
Maybe K&N isn't jumping on the permanent filters because they make more money selling disposable filters. Or maybe the SS filters aren't as good yet, so they are waiting for them to improve. I'm the guy N-H-B was "arguing" with about the trufilter. I've had mine in for a about 12,000 mi. and I'm still not sure what I think. The trufilter is cool looking, and extremely easy to service and clean, but I just don't know if it provides superior filtration to the High end synthetic (cellulose, fiberglass, or polypro) filters. As NHB stated, the only data I can find is in comparison to the standard paper filters. All the other "data" seems to have little backing either for or against these filters.

I think Trufilter would really be the shizzle if they offered the option of disposable Cellulose/glass filter inserts as an option to the SS filter media. Or even a synthetic insert to use WITH the stainless steel screen. Now that would be sweet. I think I'm gonna design it and sell it and make a billion bucks... i wish.

At this point I don't know what to do regarding filtration. Perhaps another sweet option would be to run a dual filter setup using the Stainless Steel filter AND a high end synthetic.
 
I think Trufilter would really be the shizzle if they offered the option of disposable Cellulose/glass filter inserts as an option to the SS filter media. Or even a synthetic insert to use WITH the stainless steel screen. Now that would be sweet. I think I'm gonna design it and sell it and make a billion bucks... i wish.

sounds like you have done your research...I say go for the billion!
 
Maybe K&N isn't jumping on the permanent filters because they make more money selling disposable filters. Or maybe the SS filters aren't as good yet, so they are waiting for them to improve. I'm the guy N-H-B was "arguing" with about the trufilter. I've had mine in for a about 12,000 mi. and I'm still not sure what I think. The trufilter is cool looking, and extremely easy to service and clean, but I just don't know if it provides superior filtration to the High end synthetic (cellulose, fiberglass, or polypro) filters. As NHB stated, the only data I can find is in comparison to the standard paper filters. All the other "data" seems to have little backing either for or against these filters.

I think Trufilter would really be the shizzle if they offered the option of disposable Cellulose/glass filter inserts as an option to the SS filter media. Or even a synthetic insert to use WITH the stainless steel screen. Now that would be sweet. I think I'm gonna design it and sell it and make a billion bucks... i wish.

At this point I don't know what to do regarding filtration. Perhaps another sweet option would be to run a dual filter setup using the Stainless Steel filter AND a high end synthetic.

My point was high-end long-term oil filter makers WOULD jump on the SS wagon if they saw a nice market for it. Each SS filter sold would equal about (average) 150 regular K&N filters. A car uses 150 K&N filters in what...? 750,000 miles if you change the filter out at 5k. I think K&N would rather get that payment right then and there, then wait 750k :p. Dual filters are too much of a pain to hook up.
 
IMO nothing is too much trouble to set up. Get some friends together and get your wrench on! In fact this weekend there is gonna be a big work day at Lance's (excriment on the blue forum) house. Anyone in the Toledo/ Bowling Green, or anywhere in SE michigan or NW ohio is welcome to come for a day of mods, food, fun, and friends. PM me if you are interested and want directions. It should be a good turn out!

Are you talking about the cheapest K&N filters? I haven't seen $1 filters and certainly wouldn't run one if I did. How much do the filters you run cost. When I ran high end synthetics, they were between $10 and $15 a pop. I change my oil every 3,000 mi (I know this isn't necessary, but the more you change the better), so it only takes about 30,000 to 50,000 to pay for the TruFilter to pay for itself, and double that mileage for the PurePower to do the same.

Peepers,
Thanks for the link to the lab. I'm gonna do exactly what you suggest to see if I can get some real data.
 
IMO nothing is too much trouble to set up. Get some friends together and get your wrench on! In fact this weekend there is gonna be a big work day at Lance's (excriment on the blue forum) house. Anyone in the Toledo/ Bowling Green, or anywhere in SE michigan or NW ohio is welcome to come for a day of mods, food, fun, and friends. PM me if you are interested and want directions. It should be a good turn out!

Are you talking about the cheapest K&N filters? I haven't seen $1 filters and certainly wouldn't run one if I did. How much do the filters you run cost. When I ran high end synthetics, they were between $10 and $15 a pop. I change my oil every 3,000 mi (I know this isn't necessary, but the more you change the better), so it only takes about 30,000 to 50,000 to pay for the TruFilter to pay for itself, and double that mileage for the PurePower to do the same.

Peepers,
Thanks for the link to the lab. I'm gonna do exactly what you suggest to see if I can get some real data.

Cheapest = 10-15$ that's how I did the sum up and = 750k miles....I did the math there, just didn't post it piece by piece.
 
I don't understand how you possibly arrive at 750,000 miles based on $10 dollars for the cheapest filter. If you are changing you oil every 5,000 miles, you will need 15 oil changes to equal the cost of the TruFilter ($10x15=$150). If it took 150 throw away filters to pay for the TruFilter, it would retail for $1,500. You are off by an order of magnitude.

So at $10 dollars per filter, and 5,000 mile intervals, the filter pays for itself in 75,000 miles.... not 750,000 miles.

It seems like the more I try to find out about filtering efficiency of ANY filter, not just SS media, the less I know. I've found seemingly reputable sources praising SS filters (Numerous hot rod and motorcycle mags) and others trashing them. Nobody, however, provides solid data that I can find. Also, it seems that different filters use different testing standards, so it is really hard to know what you are comparing. I'm waiting for a call back at the moment from the tech departments of both TruFilter and Pure Power. I'll get to the bottom of all this eventually, but it is taking some serious legwork.
 
I don't understand how you possibly arrive at 750,000 miles based on $10 dollars for the cheapest filter. If you are changing you oil every 5,000 miles, you will need 15 oil changes to equal the cost of the TruFilter ($10x15=$150). If it took 150 throw away filters to pay for the TruFilter, it would retail for $1,500. You are off by an order of magnitude.

So at $10 dollars per filter, and 5,000 mile intervals, the filter pays for itself in 75,000 miles.... not 750,000 miles.

It seems like the more I try to find out about filtering efficiency of ANY filter, not just SS media, the less I know. I've found seemingly reputable sources praising SS filters (Numerous hot rod and motorcycle mags) and others trashing them. Nobody, however, provides solid data that I can find. Also, it seems that different filters use different testing standards, so it is really hard to know what you are comparing. I'm waiting for a call back at the moment from the tech departments of both TruFilter and Pure Power. I'll get to the bottom of all this eventually, but it is taking some serious legwork.


Mistype. added an extra 0. Regardless, my point still stands. I'm done with this argument, as I could really care less. If these filters were all the "hype" bigger manufacturers would be getting into them, ESPECIALLY the company's that have been making filters for over fifty years and so on. But whatever, I'm done.
 
Well, I won't direct the conversation toward you anymore as you seem to be irritated for whatever reason. I don't buy your assumption that if they were great, bigger companies would be all over them. In fact the contrary is usually true. In my experience small companies almost always make superior products to the giants (of course this is a generalization and not absolute).

I have no interest in anything other than protecting my engine, and I'm in no way invested in wanting Stainless Steel filters to outperform synthetics. If I find that the TruFilter doesn't provide adequate filtration, It will be off the engine immediately and I'll go back to the quality synthetic filters I ran previously.

So, to anyone who is interested in getting to the bottom of all of this filter business...

I just got off the phone with my local performance shop and they were not familiar enough with Stainless filter screens to offer an opinion. They suggested having an oil analysis done in a lab. I will do an oil change, and run the TruFilter for 1,000 miles and then do the same with the K&N or Mobile 1. Send it in and we should have some first hand info. Of course I'll test both under similar driving conditions. 1000 miles in the city is gonna be different than 1,000 highway miles. So, It will take some time to get an answer, but at least I'll have some proof one way or another. If I run into any good info in the meantime, I'll post it up in the "oil filter.... which one?" thread.
 
This is enough. Please discuss the products based on technical merits or relay your opinions in a way that is respectful to each other and all the readers.

If it continues, I will simply clean up all the trash talk. This type of thing does nothing but clog up things for people searching for real information and opinions
 

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