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16:15:18 - 04/25/2024
General Dakota Board
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Dak
Dodge Dakota
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9/09/2004
17:35:02
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 Subject: castrol oils
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My dealership that i go to for checkups uses Castrol GTX oil. i don't know if that's what the manufacturers use, but i was wondering if anyone knows anything about Castrol GTX synthetic blend. i have heard alot about Amsoil being better than normal oil and synthetics being better anyways, but i never tried and don't know much about them. the reason i ask about Castrol synthetics is because i don't know if they have Amsoil where i go. for those who use synthetic, how much difference does it make in your truck? Thanks for any feedback.
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AmsoilSponsor
DakotaEnthusiast
 
9/09/2004
19:53:47
|  Castrol Fake vs. Amsoil 100% True Synthetic Oil
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Some of the following post was borrowed, some is original:
Castrol is NOT a 100% true full synthetic no matter how they choose to advertise and decieve. Castrol was reformulated in late 1998. Before Syntec was reformulated, it was actually a full synthetic using a full synthetic base stock with PAO's just like Mobil1, Amsoil, and 90% of the true synthetics out there. Once Castrol reformulated in late 1998, it was a known fact that Castrol did not contain any PAO's.
In fact, Castrol uses a Group III base stock which is a hydrocracked highly refined mineral oil with some synthetic additives. This is no secret, Mobil filed a complaint with the National Advertising Division of the Council of Better Business Bureaus alleging that Castrol was engaging in false advertising by claiming their Group III based Syntec was "fully synthetic". The NAD rulled that based on the evidence put forth, Group III base oil could legitmately be called "synthetic" ... even if they ARE NOT.
The NAD is merely a self-regulatory arm of the BBB and has no legal standing whatsoever in the U.S. Hence, their ruling in this matter does not make it "legal" to claim that a Group III oil is "synthetic." It merely means that for any entity willing to abide by the NAD's guidelines, a Group III oil can be ADVERTISED under those guidelines as a synthetic. The BBB certainly does not know motor oils.
If the base stock was a highly refined Group III base oil, then how could Castrol rightfully and legally call it a full synthetic? Unfortunately, Mobil lost the battle because of how the term "full synthetic" is defined by the API or SAE(can't remember which one).
A full synthetic motor oil is defined on it's ability to perform, not by what it's made or composed of. The SCAM here, is that if a company takes a cheap dino oil, hydrocracks it, adds a few synthetic additives, and it ends up meeting the minimum specifications of how a synthetic oil is supposed to perform, then the manufacturer is allowed by this vague and deceptive definition to sell and market thier oil as a "full synthetic!!!"
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If you guys like Castrol, that's fine because it's a good FAKE synthetic oil. But don't expect it to perform like a full synthetic oil, giving you the same performance of a true synthetic oil ... like Redline, Mobil1, Amsoil, etc., because Castrol is NOT a true synthetic.
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Why Synthetic Oils? Why Amsoil?
Most synthetics have similarly good typical specs, but the performance from better additives, more shear stable VI, higher TBN, etc, can not be easily demonstrated with a test or a chart. These attributes of AMSOIL show up by controlling acids in the oil, eliminating corrosion in the engine, maintaining viscosity throughout the drain interval helping improve performance in the areas of fuel economy and cold weather starting, keeping contaminants in suspension until they get to the oil filter for removal or the oil is drained, and generally keeping the engine cleaner and deposit free. These benefits are not easily demonstrated with a test or a chart. Amsoil produces a SUPERIOR Synthetic Motor Oil by using only the best base oils and additives.
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You can Request a FREE Amsoil Catalog by clicking the following link and check the specifications for yourself.
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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AmsoilSponsor
DakotaEnthusiast
9/09/2004
19:59:03
| Castrol "Fake" vs. the Benefits of using Amsoil
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Benefits of using Amsoil Synthetic Motor Oils:
Immediate start-up protection. You will experience immediate startup protection. Sixty percent of all engine wear occurs at startup. AMSOIL motor oils use high polarity base stocks and special anti-wear agents that form a thin film that clings to engine parts, preventing metal to metal contact. AMSOIL motor oils also lubricate vital engine components by quickly flowing through the engine immediately after startup.
Higher engine RPM's and more power. AMSOIL synthetic motor oil reduces friction more effectively than conventional oils, so engine bearings rotate easier. This saves energy and conserves fuel. When the engine doesn't have to work as hard to move its parts, that power can now be used to drive the vehicle. Many new AMSOIL users report their shift points actually decrease due to the added power their engines experience.
Increased fuel efficiency ... better MPG. Since AMSOIL synthetic motor oils create less friction, they also help reduce fuel consumption, increasing a vehicle's fuel economy significantly. Operating with AMSOIL, the engine doesn't have to work as hard to turn the wheels, so it takes less fuel to run.
Lower Operating Tempertures. AMSOIL motor oils can reduce excessive operating tempertures of oil sumps by up to 20 degrees F compared to conventional motor oils. Friction generates heat and since AMSOIL motor oils reduce friction, less heat is generated. AMSOIL motor oils also carry heat away from the engine more efficiently than conventional oils to further enhance the cooling process.
Easier Starting in Cold Weather ... and Winter is coming. Conventional motor oils contain wax impurities that cause the oil to thicken at low tempertures, which slows the flow of oil through the engine at startup and promotes premature wear. They can thicken to the point where the engine won't even turn over and start. AMSOIL is pure and contains no wax. AMSOIL will pour at 60 degrees below zero. Engines start in cold weather as if it were summer. AMSOIL eliminates the need for block heaters. As users of this fantastic product know, in the winter you turn the key and go, no warmup needed.
These are just the immediate benefits from AMSOIL, long term your engine will last much longer, you'll have less time in the shop, and your vehicle will run like new longer.
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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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Dak
Dodge Dakota
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9/09/2004
21:26:40
|  RE: castrol oils
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Ok, so i take it it's not very good (Castrol that is). Thanks for the advice. i'm hoping the dealership has Amsoil, but if not i'm almost positive they'll have Mobil 1. i'm just going to try it and see if i like it. thanks.
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Piano Man
Dodge Dakota
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9/09/2004
22:35:39
| RE: castrol oils
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If you have a Fleet Farm or Menards where you live they have amsoil
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AmsoilSponsor
DakotaEnthusiast
9/10/2004
07:04:38
| Castrol vs. Amsoil Retail Wholesale Prices
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Dak, I actually stated that Castrol is a good NON-Synthetic Oil but why not pay a little more for what may be the BEST Synthetic Motor Oil on the market.
The most common oil recommendation for Dakota's is:
Amsoil SAE 5W-30 or 10W-30 Synthetic Motor Oil
Amsoil Catalog Retail Prices
(1) quart bottle - $5.85 (Retail)
(1) gallon bottle - $22.80 (Retail)
(12) quart bottles - $69.00 (Retail)
I have seen this oil on retail shelfs for as much as $9.99 a quart.
This is the oil that I use ...
and I pay only $4.55 per quart = Amsoil Preferred Customer Price.
__________________________________________________
You can Request a FREE Amsoil Catalog by clicking below.
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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Darryl
Dodge Dakota
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9/10/2004
13:32:29
| RE: castrol oils
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Go with the Castrol Syntec 5W-30 for year round performance.
It's all I use and I live in the So Cal high desert and it gets flippin' HOT.
Darryl
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DSW
Dodge Dakota
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9/10/2004
14:55:24
| RE: castrol oils
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Piano Man, Where you from? Every time I go home to see my folks in Wisconsin I know I am getting close when I start seeing the Fleet Farms and Menards ;)
As far as Castrol Syntec goes, I used to use it until I found out I was paying $4/qt for a $2 bottle of dead dinosaurs. It's a shame that Castrol switched thier formula to hydrocracked dino since they could get away with selling it as Synthetic because of loop holes in laws and regulations.
If it says synthetic on the bottle, it should be synthetic in the bottle. I use Mobil 1 in the engine (because it's readily available) and Amsoil in the tranny, diffs and power steering.
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