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11:37:16 - 04/24/2024
V6 Dakotas
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regcabdak
Dodge Dakota
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6/10/2004
20:02:42
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 Subject: would 5w30 hurt my engine?
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Message:
hello
I have a 2003 dakota with a 3.9L v6 (6k miles).
I checked my manual and it says to use 10w30 motor oil for the 3.9L v6, but then sayd 5w30 for best mileage in the 4.7L v8...
Would it hurt my engine to switch to synthetic 5w30? or does a component in the engine require the 10w30 to function properly?
Thanks
Tyler
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Philip
Dodge Dakota
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6/10/2004
20:49:51
| RE: would 5w30 hurt my engine?
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Message:
I dont think it would hurt your engine. If I remember correctly, 5W-30 is best for colder weather.
Personally, I use the AMSOIL 10W-30 and absolutely love it. I can feel the engine running smoother not to mention the MPG increase was awesome.
Not sure if I helped
Philip
03 Dak 3.9L
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AmsoilSponsor
DakotaEnthusiast
 
6/10/2004
21:31:43
|  0w-30 5w-30 10w-30 10w-40 Amsoil Amzoil Ams oil
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Message:
Either oil is recommended for most Dakotas.
Both oils are 30 wt. oils, and the first number is the Cold Cranking Measurement and determines how well the oil performs in cold climates.
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Thin vs. Thick wt. oils
The automobile manufacturers now recommend thinner oils for their vehicles than in the past. Thinner oils are being used these days because they save fuel in test engines. Years ago, SAE 10w-40 was the most commonly recommended viscosity grade, later migrating to SAE 10w-30. SAE 5w-30 is most popular now, but Ford and Honda recommend SAE 5w-20. It is likely that more widespread adoption of SAE 5w-20 and other thin oils may occur to help comply with CAFE requirements.
Because of the change in cold-flow requirements and the fuel economy test pushing formulators toward the bottom of the viscosity grade, today’s SAE 10w-30 oils are more like yesterday’s (GF-1 spec) SAE 5w-30 oils. On top of that, there is the trend toward automobile manufacturers recommending thinner grades.
This seems ridiculous.
SUVs and trucks, with their inherently less-efficient four-wheel drive and brick-wall aerodynamics, need powerful, gas-guzzling engines to move their mass around in a hurry. In response, auto manufacturers recommend using thin oils to save fuel. Incredible but True!
Thinner oils have less drag, and therefore less friction and wear. Right? Perhaps in the test engine or engines that experience normal operation. But somewhat thicker oils may offer more protection for more severe operations such as driving through mountains, pulling a boat, dusty conditions, short trips, high rpm, overloading, overheating and overcooling.
__________________________________________________
Click the following link to request a FREE Amsoil Catalog.
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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wyatt
Dodge Dakota
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6/14/2004
11:09:23
| RE: would 5w30 hurt my engine?
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Message:
i put 5w30 synthetic in my 3.9 dakota once and it leaked like crazy out of the valve covers, cylinder heads and a bit from the oil filter and i cranked it just tight. i put regular oil back in and its just fine.
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