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13:24:15 - 04/23/2024
V6 Dakotas
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dm
Dodge Dakota
JOIN HERE
2/06/2004
02:17:56
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 Subject: easy oil question
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Message:
Hey guys... have a 98 Dakota 3.9L, 109,000 miles on it. It has spent 5 and a half years in either Texas or California, and now the last 6 months I'm in a much colder climate (Ontario). It has always had 10W-30 oil in it. Is it a better idea to stick with 10W-30 despite the colder temps (some days barely reach 0F), or is it better to switch to 5W-30 even though it has 100K+ miles on it all with 10W-30? Does an engine get "used to" a specific grade of oil?
Thanks,
dave
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tazzy
GenIII
2/06/2004
02:30:41
| RE: easy oil question
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Message:
Do a complete flush,,,
then 5w-30 synthitic,,I.E.Amsoil....or..Mobile 1
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AmsoilSponsor
DakotaEnthusiast
2/06/2004
06:48:45
|  Amsoil Synthetic Motor Oils, Lubricants, Filters
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Message:
dm,
You can switch to 5w-30.
In general, An engine does not "get used to" a particular viscosity.
Only do a flush if you are switching from dino
to synthetic and I recommend www.Auto-Rx.com
(not an Amsoil product and I do not sell it).
__________________________________________________
tazzy,
LOVE THE MOPAR GIRL!
Does she come in a "real life" version?
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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J and J Auto
GenII
2/06/2004
15:36:20
| RE: easy oil question
IP: Logged
Message:
I run the origanal Amsoil Turbo 10w 30w in 30
degrees below 0 and have no probs
Larry
J&J Auto
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AmsoilSponsor
DakotaEnthusiast
2/06/2004
16:11:53
| Amsoil Viscosity Discussion -- Synthetic Oil
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Message:
VISCOSITY DISCUSSION
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.
__________________________________________________
" __W- " 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 for 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.
__________________________________________________
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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