Read a User's Experience
with Leaks and Auto-Rx^®

Don't start the application until you read this!

If the seal is NOT torn or otherwise damaged, we might be able to do something for you. There is the possibility that the seal is just fouled. Once clean, it may relax and work again. I would imagine that you may see an increase in leakage during the Auto-Rx treatment as any contamination is removed. If the seal is indeed damaged, there will be no remedy other than repair/replacement. 

As far as being safe, all Auto-Rx can do is clean. It does not swell, condition, or otherwise impact anything in an altering way. It's not a sealer/conditioner or anything of that nature.

Does your car have a sludge-prone engine? Are you sure you do not have issues related to that problem? Have you had your PCV system checked to assure it is functional, clear, and intact? This can allow higher than normal crankcase pressures that could make your seal issue worse. 

But if you are SURE that the engine is sludge free, then proceed with the normal cleaning and rinse phases with a single bottle of Auto-Rx. You should use a conventional oil (Group II) or perhaps an approved Group III synthetic. Please read this, as oil selection is very important. 

This is also a very important distinction. These instructions are ONLY if your engine is not experiencing a sludge condition. Some engines are known for sludge. If your problem is a byproduct of a sludge condition, then this treatment may not be enough. These engines tend to form hardened tar-like deposits that are quite stubborn and require double-dose treatments (2 bottles) and a commitment from the end user to do timely filter changes. I'd recommend verifying that the engine has no unusual deposit accumulations. 

If the seal can be cleaned and can relax, it should occur somewhere in the rinse phase or the next "no additive" interval. And you may choose to do one additional conventional oil (or approved synthetic) interval without adding anything. 

For best results, Auto-Rx^® should be added to a fresh charge of conventional, non-synthetic, non-high-mileage oil with a new filter installed. However, if you have a very recent, low-mileage oil change using ONLY conventional oil, you may use your existing oil. Auto-Rx^® cannot help you if the seal is torn, ripped, or otherwise damaged.

FOR THE ABOVE REASONS, WE DO NOT PROVIDE A MONEY-BACK GUARANTEE FOR A SEAL-LEAK APPLICATION, AS WE HAVE NO CONTROL OVER THE VARIABLE FACTORS WHICH MAY BE PRESENT. BUT WE BELIEVE THAT THE COST OF AN AUTO-RX^® APPLICATION IS WORTH A TRY BEFORE YOU INVEST IN A VERY EXPENSIVE REPAIR JOB.

TO PROCEED, FOLLOW THESE INSTRUCTIONS CAREFULLY.

How It Works
Auto-Rx^® does not swell seals in order to stop a leak; we clean the seal material on both sides. This makes the seal extremely pliable, so that it will continue to leak for a while even after you are done with the Auto-Rx^® application, but please be patient. Just continue to top off the oil. If you use the oils we recommend, your leak should stop within a few hundred miles. You may use Group II conventional or III mineral oil AFTER this application is completed. The simple additive package in these oils will restore firm pliability in the seal and stop the leak within a few hundred miles. [ Acceptable Oils ]

This plan will work providing you don't have a ripped or torn seal. (We cannot do anything with a damaged seal.) Stay with this type of oil (no synthetic, semi-synthetic, or high mileage oil). You can go to the Auto-Rx^® maintenance plan after the next oil change interval, BUT NOTE: Do not begin the maintenance plan until the seal leak has stopped.

Customer Comment:
I'm a Volvo Resto Man:
I'd say I service the cars I restore with Auto-Rx about 80% of the time before they leave. I also recommend it to my service customers. Most recently, a customer brought me her 1990 244 to be refurbished. The car was exhibiting some oil loss from the rear main seal. Part of the service included an oil change with our favorite elixir. When the car came back for the follow-up about 2,000 miles later, the bellhousing and surrounding areas were completely dry, no sign of the leak at all.

Not the first time I've had these results. I've stopped leaks at cam and intermediate shaft seals, crank front seals, too. The red block 240s are often plagued with gummy ring packs from lack of high speed use or poor oil change upkeep. This leads to piston slap. Using Auto-Rx^® cleans the ring packs and quiets the engines. I find that following the maintenance routine also keeps the Volvos' flame trap system clear, very important in these cars. A restricted flame trap can increase crankcase pressure causing leaks at seals and gaskets. I run Auto-Rx^® in all of our cars, as well, and I'll usually do a full service once a year. Great stuff! —Dave the Wagonmeister (David Samuels), http://wagonmeister.com

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