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01:08:42 - 12/20/2024
General Dakota Board
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Joe
Dodge Dakota
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7/01/2004
03:28:07
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 Subject: A new ?? about Syn oils, ive searched!
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Message:
I have done a ton of searches and lots of reading and no one has talked about this yet. Just to get this clear
i know syn oil is better and personally i use amsoil. but the ? is, when is it too late to convert to syn oil.
Ive heard with higher mileage engines it can cause leaks because its so much thinner then reg oil.
im about to buy a 98 dak v8 with 132k miles and want to switch it syn but want to make sure it will be ok in the long run.
I know there are some opinions and facts about this, jsut wanted all of your .02 on it
thanks
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peedee
Dodge Dakota
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7/01/2004
10:12:48
|  RE: A new ?? about Syn oils, ive searched!
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Joe, here is a site that has tons of info about oils. It is a condensed version of a book for sale, but you will find info to help make a decision.
The link is as follows:
http://www.motor-oil-bible.com/mob-2-2-04.pdf
the info you are looking for specifically starts on page 54. You will also find a chart near the end that sums all the technical data. You need to have an understanding of what the headings mean. If you don't, then that understanding can come from reading the previous text.
To answer your question of leaks. Most leaks occur due to the fact that regular oil tends to swell seals slightly and synthetic oil does not. So, you may or may not experience leaks. Generaly speaking, if the seals are still supple/resilient, you won't have a problem. If you did, you could always switch right back to regular oil and in a short time the seals would swell again.
I hope this helps.
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peedee
Dodge Dakota
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7/01/2004
10:19:05
| RE: A new ?? about Syn oils, ive searched!
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The charts start on page 151. Lots of info but worth the read.
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AmsoilSponsor
DakotaEnthusiast
7/01/2004
10:41:54
|  Amsoil Auto-Rx - Switching a high mileage vehicle
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With respect to Michael Kaufman (who authored the above mentioned book) ... the book is a bit outdated, in some places to general, and others a bit "over the top" ... since he is an Amsoil Dealer. And in my opinion he does not do the question above justice.
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Here is my response:
Synthetic lubricants do have an inherent detergency that cleans and removes conventional motor oil deposits (sometimes referred to as crud) left over in an engine. However, all motor oils are designed to help swell seals slightly to prevent leakage. The only time you would observe seal leakage is if the seals are already damaged or showing signs of leakage around them. As long as the vehicle has been well maintained, and in good mechanical condition, it can be switched to a synthetic lubricant at any mileage.
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In general, --- any seal leakage when switching from conventional "dino" to synthetic in higher mileage vehicles is usually due to the fact that the seals were already damaged and simply filled with "crud". True - the detergency in synthetics cleaned the sludge --- and the problem (which already existed) becomes evident. This is mostly in older vehicles since seal materials are better in modern engines.
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Seal Compatibility
AMSOIL lubricants are all tested for seal compatibility with all the seal materials in use with industry accepted testing methods. AMSOIL Products will not damage seals or be more prone to leaking than petroleum products when used in vehicles with undamaged seals. Unfortunately, high mileage vehicles and equipment that have been using petroleum lubricants for long periods of time face the risk that sludge and deposits have built up in the engine and created a false seal, and the seal itself has dried out and cracked or shrunk. Lubricants help condition seals, keeping them supple and slightly swelled to insure a proper seal with no leaks. When covered with sludge or deposits, the seal will deteriorate. Now you start using AMSOIL motor oil with it’s high quality additive package and natural detergency, and you start to clean up the engine. The false seal is cleaned away, and if the seal itself has become cracked or damaged, a leak will develop. The same thing occurs in transmissions and differentials. Because of this, many people think that synthetic oil is more prone to leaking, when all it really is doing is revealing the problem that petroleum oil deposits had created and kept hidden. Once the damaged seals are properly replaced, keep using the synthetic oil and they won’t leak again.
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If you have concerns about how the engine was maintained, or think that it should be flushed prior to switching to synthetic ... I recommend Auto-Rx®, www.auto-rx.com.
I do not sell this product but I really like it!
FOLLOW THE DIRECTIONS RELIGIOUSLY!
Auto-Rx® works slowly, methodically and efficiently and will take 750+ miles to do its job. Engine deposits are formed layer by layer, they should be removed layer by layer. Auto-Rx® does exactly that. It's formulation does not interfere with the physical characteristics of the host motor oil --- and it is compatible with synthetic as well as non-synthetic oils. You have nothing to loose by flushing wthe engine with a quality product except harmful engine deposits and sludge.
Auto-Rx is a synthetic, biodegradable, highly effective, safe metal cleaner. Auto-RX is gentle, slow acting, and thorough. I know many vehicle owners that have used it and no one has reported any problems.
Auto-RX is inert in your oil,it does not negatively affect any aspect of your host oil except to clean and disburse crud to the oil filter. There are no negatives associated with it's use. Auto-RX was developed as an alternative to solvents for a slower non hazardous alternative that does not deplete, but ends up disbursing the crud in a very small form ... small enough to flow by bearings etc.
If anyone decides to use this Auto-RX product (Repeat ... I do not sell it) FOLLOW THE DIRECTIONS RELIGIOUSLY.
I wish that I sold it ... but it is a proprietary product.
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If you are interested in Amsoil, you can Request a FREE Amsoil Catalog by clicking the following link.
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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peedee
Dodge Dakota
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7/01/2004
10:54:06
| RE: A new ?? about Syn oils, ive searched!
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steve, is Risolene still on the market? It used to be great stuff for cleaning when i was in the business. It wasn't a solvent and could be added in place of one quart of oil to clean the system. I used to save a lot of people from top end work because it so effectively cleaned all passages and lifters etc... But i have been out of the business now since the late 80's so I don't know if it still exists.
To my knowledge though, the problem with the leaks is because of swell (primarily). Crud is usually in the (worn) groove on the sealed shaft. If the seal is in good shape, it will respond to the added clearance. IF not, well, new seals were a given anyway in the near future.
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AmsoilSponsor
DakotaEnthusiast
7/01/2004
11:20:57
| Amsoil Auto-Rx -- Switching a high mileage vehicle
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Do you mean Rislone? Yes, it is still available, I've seen the yellow bottles at Walmart. Cheaper than Auto-Rx ... but I've never used it. I guess if someone had an old clunker it would be worth giving it a try since it is cheaper than Auto-Rx, otherwise I recommend Auto-Rx.
I am skeptical of additives and treatments in general, but I am willing to recommend Auto-Rx due to all the people that I know who have had success using the product, with no red flags in their Used Oil Analysis (UOA) afterwards.
Auto-Rx is a synthetic, biodegradable, highly effective, safe metal cleaner ... and Auto-RX is gentle, slow acting, and thorough ...
__________________________________________________
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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peedee
Dodge Dakota
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7/01/2004
12:13:52
| RE: A new ?? about Syn oils, ive searched!
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Message:
steve, yes that is the proper spelling. Shows how long it has been for me.... I used it religously for years in my vehicles and customers vehicles with great results (every other change). If a customer came in with a noisy valve train, (lifters, or smoke during start-up and/or deceleration I would always give an oil and filter change with one quart of "Rislone" before major surgery. In most cases that did the trick. I always changed the filter after approx 500 miles. The engines that still needed a take-down were ultra clean inside though. It also gave me a customer for life..... in either case. I brought it up out of curiousity though, not to suggest it as a substitution for a "flush".
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