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Todd
Dodge Dakota
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8/24/2005
16:37:17
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 Subject: Synthetic Oil Users
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I have a '00 4.7 quad cab with 80,000 (purchased used with about 70,000). I absolutely love the truck and have always used dino oil with 3 changes a year. I only put about 10,000 miles a year on the truck. Lately, I've been looking at using synthetic purely to reduce wear as I figure it will cost more changing oil once a year. The truck seems to be in great shape and I plan on keeping it for as long as humanly possible. Would it be worth the extra $ to go with synthetic?
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.boB
Dodge Dakota
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8/24/2005
19:07:07
| RE: Synthetic Oil Users
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I would.
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Jecht
Dodge Dakota
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8/24/2005
20:34:42
| RE: Synthetic Oil Users
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it is worth it. just a FYI engines with high miles on it can produce leaks around engine seals. as it cleans the engine of the dirt and sluge in the engine that can build up around the seals. but alot of people has done it with over a 100,000 miles on it. with no probs.
just wanted to let yo uknow about this so you wont get pissed and wonder why you got oil leaks. I did my truck with 32,000 on it and I used M-1 and the engine runs much better. will be going with amsoil next time.
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Dan M
Dodge Dakota
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8/24/2005
22:40:14
| RE: Synthetic Oil Users
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I switched with over 100k miles on it, no leaks yet. I use mobile 1.
- Dan M
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Andrew
Dodge Dakota
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8/24/2005
23:32:22
| RE: Synthetic Oil Users
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I would say that it is worth it. It gives greater peace of mind plus you do not have to change your oil as often which is a plus. I switched over to synthetic about 40k miles ago and have been very happy with it, my engine definitely runs smoother and has been problem free.
The expense really is not that much more considering you can run on longer intervals.
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AmsoilSponsor
DakotaEnthusiast
8/25/2005
08:34:30
|  Synthetic Oil - Amsoil Dealer Steven Roark 1061837
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Synthetic and Non-Synthetic Differences
The major difference synthetics perform longer than petroleum oil is heat tolerance. Flash point is the temperature at which an oil gives off vapors that can be ignited with a flame held over the oil. The lower the flash point the greater tendency for the oil to suffer vaporization loss at high temperatures and to burn off on hot cylinder walls and pistons. The flash point can be an indicator of the quality of the base stock used. The higher the flash point the better. 400 degrees F is the minimum to prevent possible high consumption.
Today’s engines are expected to put out more power from a smaller size and with less oil than engines of the past. Therefore, the engines run much hotter than they used to. That puts an increased burden on the oil.
Even the best petroleum oils will have flash points only as high as 375 and 420 degrees F. For today’s hot running engines, this may not be nearly enough protection. Just about any synthetic you come across will have a flash point over 430 degrees. High quality synthetics can have flash points over 450 degrees (Every AMSOIL synthetic oil has a flash point of over 450 degrees F with some exceeding 475 degrees). As a result, you will see little noticeable breakdown due to burn-off.
Just as important is the way in which petroleum and synthetic oils burn off. As a refined product, petroleum oils molecules are of varying sizes. Thus, as a petroleum oil heats up, the smaller molecules begin to burn off. Since the ash content in most petroleum oils is very high, deposits and sludge are left behind to coat the inside of your engine. In addition, as smaller particles burn off, the larger, heavier molecules are all that is left to protect the engine. Unfortunately, these larger particles do not flow nearly as well and tend to blanket the components of your engine which only exacerbates the heat problem.
Synthetic oils, because they are not purified, but rather designed specifically from the ground up for lubrication purposes, are comprised of molecules of uniform size and shape. Therefore, even if a synthetic oil does burn a little, the remaining oil has the same chemical characteristics that it had before the burn off.
There are no smaller molecules to burn-off and no heavier molecules to leave behind. Moreover, many synthetics, have very low ash content. As a result, if oil burn-off does occur, there is little or no ash left behind to leave sludge and deposits on engine surfaces. Obviously, this leads to a cleaner burning, more fuel efficient engine.
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You can click the following link and Request a FREE Amsoil Cataolg and read about the differences a TRUE Synthetic can offer.
Thank You, Steven Roark - Amsoil Dealer # 1061837
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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NDTracer
Dodge Dakota
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8/26/2005
10:46:46
| RE: Synthetic Oil Users
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I have considered the same change and would like some advice. The truck has 86k on it and I was told the owner took it to the local Dealer for the changes. They said they only used Mobile 1 so would the build-up be much of an issue with this oil too? I have heard Penzoil is terrible but have heard good about Mobile.
Also if I change to synthetic is the weight ranges the same? I am used to running 5w30 all year as that is what my T&C van, stratus, jeep all needed but the Dakota states 10w30 until the cold temps set in. I have no problem running 10w30 year round but only if it doesn't get to thick to start in -20 to - 35 temps.
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Jecht
Dodge Dakota
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8/26/2005
17:26:50
| RE: Synthetic Oil Users
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mobil 1 is a synthetic oil.
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NDTracer
Dodge Dakota
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8/26/2005
17:48:31
| RE: Synthetic Oil Users
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OOPS your right it was just Mobile not Mobile 1. My mistake.
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NDTracer
Dodge Dakota
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8/26/2005
17:49:12
| RE: Synthetic Oil Users
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OOPS your right it was just Mobile not Mobile 1. My mistake.
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AmsoilSponsor
DakotaEnthusiast
8/26/2005
20:11:33
| Synthetic Oil - Amsoil Dealer Steven Roark 1061837
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ND Tracer,
You can use 5w-30 year round (vs. 10w-30) as both are "30 wt."
__________________________________________________
VISCOSITY ... in the general term is defined as " a fluids resistance to flow". it's a measure of the internal friction of the fluid or the resistance to the movement of one layer of molecules relative to an adjacent layer.
THE LOWER (SMALLER or FIRST #, as in "10w-_) NUMBER .. is the Cold Cranking Measurement, made at low temperatures, using a concentric cylinder viscometer to predict the oils cranking resistance in an engine during cold starting.
The measuring devices, or viscosmeters, most often used are in the form of close-fitting concentric cylinders. The fluid being evaluated is placed between the cylinder walls, the outer cylinder is held stationary and the inner cylinder is rotated. The speed of rotation is measured for a given force to calculate the viscosity, most commonly reported in cp or centipoise units. Also known as Absolute Viscosity.
THE HIGHER (BIGGER or SECOND #, as in "-30") NUMBER...is commonly measured in capilary tubes, in which the time for a fixed volume of fluid to flow through the tube under gravity at operating temp (100c)is measured and reported as cSt or centistokes. This is used most commonly to report the normal operating viscosity of motor oils or the higher number.
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" 0W- " is a viscosity GRADE, not a viscosity MEASUREMENT.
When testing for cold fluidity, the temperature is lowered approximately 5 degrees centigrade between each test.
The Cold Crank Simulator Apparent Viscosity is tested at:
-20 C for 10W-
-25 C fpr 5W-
-30 C for 0W-
It is my understanding that the oil has to be labelled at the lowest temperature it meets the specifications.
It may not be long before someone comes out with a " -5W-30 " which would correspond with -35 C.
__________________________________________________
You can Request a FREE Amsoil Catalog by clicking below.
Thank You,
Steven Roark Amsoil Dealer # 1061837
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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