Toilet paper in an oil filter is actually a good idea
The line between novelty and true advancement in technology is very fine. Razor-thin, in fact. That’s why a lot of products that could make our lives easier or better often get scoffed at by those who don’t understand them completely. On the other end of the spectrum are items promising the world for $19.95.
Somewhere in between is the Frantz oil filter.
Haven’t heard of it? I hadn’t either, until a member of one of the Corvair forums I follow put out a for-sale ad that caught my eye. A silver canister with two hose-barb fittings and an angle mounting bracket, along with what looked like a little adapter. Anytime I’m unable to quickly identify a part, I spiral rapidly down a hole of research. A Corvair piece that I hadn’t seen? Gotta know about it. Luckily, the seller didn’t leave folks guessing. It was a Frantz oil filter, with the rare, Corvair-specific adapter for easy install.
Neat—but why did it exist? What problem does this fix? Was it a … snake-oil filter?
Part of what had caught my eye in the listing was a roll of toilet paper used to prop up the adapter for photos. Turns out, as odd as it looked, the roll was supposed to be there. The Frantz filter is marketed to either supplement or replace a factory-fit oil filtration system with toilet paper. As strange as the idea sounds, toilet paper as an oil filter is not crazy.
After all, the vast majority of oil filters are paper media, strands of fiber woven together create a perfect net to catch particulates. A pleated paper element comprises the core of most spin-on cartridges, and it makes sense to change out the paper rather than the whole element. The Frantz company decided to utilize something every car owner had on hand: toilet paper.
By sizing the canister just right, Frantz could direct oil through a core of “filter material” nearly 4.5 inches in diameter before allowing the oil to exit and return to the engine. The roll provides markedly more filtering material than a pleated-element insert does. Frantz also claims that the toilet paper is constructed with a finer mesh and thus can trap even smaller particulates than a traditional filter.
That isn’t hard to believe. Anyone who has taken apart an oil filter to see what nastiness it was catching from inside their engine can see the filter media is fairly thin. It feels a bit like loose cardboard. If you unwind a roll of toilet paper, you’ll get about 75 feet of filter material. Seventy-five feet. That should filter your oil well for a long time—and it can. Sort of.
The trouble relates to how oil degrades in your engine. Sure, debris and junk that finds its way past gaskets or piston rings needs to be trapped, but oil itself degrades at the chemical level. Heat and pressure conspire to reduce the effectiveness of the many additives in modern oil, regardless of the system’s physical filtration level.
Oil becomes acidic because of the byproducts of combustion that leak past piston rings and valve seals. Even if you removed all the debris floating in your oil, you would still need to change it on a regular basis. If your oil gets acidic enough, it can damage bearings and other surfaces just as badly as if it weren’t there or if it were contaminated with chunks of stuff. Only changing the oil can prevent the breakdown of those chemical compounds. If you are changing oil often enough to keep that degradation at bay, then do you really need a supplemental filter to remove every last floating piece of junk? That’s for you to decide.
I had to have the Frantz filter for my garage. I messaged the seller, then sent over some money and my shipping address. It won’t be installed on the Corvair, but I’m not going to call the Frantz a gimmick, either. It’s a fun conversation piece that I can mount behind the workbench and maybe even use as a storage canister for hardware or little bits that need to stay safe while I’m working on a project. After all, what gadget is more interesting than one meant to equip your vintage ride with a roll of toilet paper? I can’t think of much else.
I am the owner and manufacturer of the toilet paper oil filter invented by John Frantz. It is now called The Refiner by Mr. Frantz. Personally, I have used his bypass oil filter since a teen in 1960. I became a distributor for ten years and finally Mr. Frantz’ grandson informed me about his latest design he invented prior to his death. I acquired the rights to it and have been manufacturing it ever since. You can get more TRUE information by going to http://www.ToiletPaperOilFilter.com and I will answer serious inquiries also. A product invented in the 1950s and still alive can refute many false claims.
I hear you. I was putting a little Frantz on a Chevy Luv. I noticed a little Frantz on the frame of his 18 wheeler. I said that Frantz is too small for that truck. He said no it isn’t I change it every day. Was at the Denton Texas flea market in the mid 80s. An old couple showed me their 53 Chevy they bought new and put a Frantz on it. An over the road truck pulled off the highway. He said come and look at mine. He had two Frantz 3 stackers on the firewall. 8V Detroit 2 cycle. Said he gets a 6 pack of Safeway Truly fine to service them. I also got the typical liars and fools. One guy told me so much toilet paper was getting in the oil passages Frantz had been outlawed in Texas. I was licensed and insured to sell Frantzs in Texas. The BS stories can put you out of business.
Thats the bypass filter and the full flow filter. Getting old
Toilet paper didnt work in the full flow filter canister. It had to be a bypass filter canister. And you needed to know how. The oil had to go thru the paper instead of around it.
Some say you have to change the oil because of acid. As far as I know the additives neutralize the acid. Its called the total base number . There are two reasons for changing the toilet paper.Its to keep the oil clean and to add new makeup oil with the new additives. Weak acid is more corrosive than strong acid. If you have acid in your oil it will do a job on your dipstick. The main thing is to use a good oil and keep it clean and dry. I have always driven enough at operating temperature for the PCV to remove the condensation and unburned fuel. Short trips in cold weather could be a problem. Watch your dipstick.
The reason I dont normally need to drain the oil is additives last a lot longer in clean oil. A quart of new oil added at filter change is normally enough for my cars and my driving conditions. In the 60s with 60s cars and 60s motor oil it was about every 2 K mlles toilet paper change and a new quart of oil. With the Pontiac its every 6 K miles. I go by the look and feel on the dipstick on the diesel tractor.
The reason they dont need to drain the oil with the over the road trucks using the big paper towel filters is the same except its two rolls of big roll paper towels and three gallons of new oil added. They use oil analysis. I watch the dipstick for problems like leaky head gaskets.
Got into a debate with a NASA diesel equipment engineer on a trawler forum years ago. He said come down to Canaveral and lets talk about filters. I called Gulf Coast filters and told them to send someone to talk to the guy about big filters. They are moving the shuttle. They are customers now.