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souza
Dodge Dakota
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7/23/2007
04:39:12
|
 Subject: 10w30/5w30?
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Message:
just changed oil. Switched to quaker states 10w30 since the store was out of the 5w30. Although I was considering a 5w30 from a generic oil brand I've never heard before (on Kmart shelves). I just keep pondering should I have bought the lower quality but right wieght oil or the better quality and slightly off wieght oil. Any opinions?
What's the difference between 10w30 and 10w40? Is the 10w40 bad for the truck? and if so, why?
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RadioMan
Dodge Dakota
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7/23/2007
06:46:13
| RE: 10w30/5w30?
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Message:
You did the right thing, souza. 10w30 is what my
02 manual says to use. Only time I'd ever use
5w30 would be winter time in a VERY cold area of
the US.
10w40 is *OK* if your area has lots of 95+ days
during the summer months.
NEVER NEVER use no name brand oil! You'll pay for
it sooner or later.
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Curly
Dodge Dakota
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7/23/2007
11:25:42
| RE: 10w30/5w30?
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Message:
same here
i only use 5/30 in winters
i know in the older owners mans.
they used to give a page with the oil (picutre)
scale
it showed what weights to use
according to the air temps
they still put it in the newer owners manuals ?
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Dan M
Dodge Dakota
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7/23/2007
12:19:34
| RE: 10w30/5w30?
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Message:
I use 5W30 year round
I live in GA where it doesn't get very cold often but i do travel between GA, IN and NC all year round. I do spend enough time in the mountains of GA/TN and NC during fall and winter in pursuit of trout.
- Dan M
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Kowalski
GenIII
7/23/2007
18:20:19
| RE: 10w30/5w30?
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Message:
5W30 year round here too. Less friction for a motor designed with tighter tolerences, like the 4.7 or 3.7. Extra viscosity just hurts performance if you don't need it.
Lead, follow, or get out of the way
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Bill K
Dodge Dakota
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7/24/2007
12:09:16
|  RE: 10w30/5w30?
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Message:
MMMMMMMM.....Oil.
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.boB
Dodge Dakota
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7/24/2007
15:21:30
| RE: 10w30/5w30?
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Message:
I use 5W-30 year round in my 5.9. Doesn't seem to be any problem with engine performance. Last week end I towed a medium weight trailer at temps near 100*. It's not uncommon to see -10* in the winter.
You need to generally understand what the numbers mean. The number refers to viscosity (thickness). It's a measurement of how the oil flows or pours. A 40 is thicker/heavier than a 5. Thin would be like water, thick would be like heinze ketchup.
Viscosity standards are specified by API and other organizations, so there's some standardizations from one brand to another.
The W stands for Winter. It's generally accepted as pour/viscosity behavior in the cold.
The above is mostly common knowledge and common sense. Most people just skimmed over it, thinking "yeah, yeah, tell me something I don't know". OK then, here's the tricky part. The numbers probably don't mean what you think they do.
Viscosity is rated at a standard temperature. I think it's 50*, but could be wrong. The exact number isn't important. Just remember that it's a standard temp. Viscosity varies by temperature. Imagine trying to pour molassis out of the fridge, compared to just off the stove.
5W oil doesn't mean that it pours like a 5 oil when it's 0*. 5W means it will pour like a 5 oil would if it was chilled to 0*. At 0*, it may pour like a 40 oil.
Same thing when the oil gets hot. 10W-40 does not pour like a rated 40 oil at 200*. It pours like a 40 oil would pour after it's been heated to 200*. The actual viscosity when hot may be 10. That's why the pressure drops when the oil gets hot.
So how do manufacturers get the oil to pour at various ranges at various temps? Additives. In dino oils, it takes more additives to get a greater spread of viscosity. 5W-40 is tougher to make than 10W-30. More additives mean the oil won't last as long, and needs to be changed more often.
What viscosity should you use? You need oil thick enough to maintain pressure during operating conditions. Thicker oil takes more effort to move it around. Costs you power, and increases wear on the oil pump and it's drive mechanism.
My truck does just fine with 5W-30. But my street/track car needs 15W-50.
Synthetics are a whole differant ball game.
|
Amsoilsponsor
DakotaEnthusiast
7/24/2007
16:47:18
| RE: 10w30/5w30? Please consider Amsoil
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Message:
A 0w-30, 5w-30 and 10w-30 oil are ALL 30 weight oils at operating temperature (approximately 10 minutes after starting the engine).
The first number, preceding the ‘w’ (for Winter), is an indication of low-temperature performance - the lower the better in winter. The lower winter viscosity grades will be more valuable in colder climates. 10w- generally flows and pumps fine at four degrees below zero on the Fahrenheit scale, and each grade below that buys you another nine degrees.
Synthetic oil is vastly superior to conventional oil in its low-temperature pumpability, high-temperature stability, long-drain capability, and high lubricity (low friction).
The second number represents the oil’s high-temperature viscosity, but higher is not always better! One wants to choose the minimum viscosity that results in an oil film thick enough to prevent wear at the temperatures one expects to encounter. Only the engineers that designed the engine know what viscosity is required to provide adequate film thickness without unnecessary friction, so you should certainly try to remain within manufacturers guidelines. For what it’s worth, I trust the engineers.
_________________________________________________
The Importance of VISCOSITY
All metal engine parts need to be separated from each other while moving in order to prevent friction and wear on the parts. This in done in modern production engines using a thin film of oil (usually less than 1/10,000 of an inch thick). Oil’s viscosity, in part, determines how thick a film the oil will form between moving parts, and how much friction there will be between those parts when separated by the oil.
Higher viscosity means thicker oil films and more friction within the oil. Obviously, one wants a viscosity high enough to prevent parts from grinding against each other, but no higher than that, because any more results in excessive friction within the oil, leading to excess heat and power loss. The ideal oil would provide the minimum required viscosity under all conditions.
Unfortunately, an oil’s viscosity diminishes with increasing temperature, necessitating the use of an oil which will have the minimum required viscosity at the highest expected temperature, and greater than optimal viscosity at lower temperatures.
It is almost certain that higher viscosity oils, such as Xw-40 and Xw-50, are complete wastes of energy, placing undue strain on your engine, and raising operating temperatures for no real benefit.
_________________________________________________
You can request a FREE Amsoil Catalog by clicking below.
Please consider Amsoil for your lubrication and filtration needs.
Thank You,
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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yepp
Dodge Dakota
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7/25/2007
12:16:54
| RE: 10w30/5w30?
IP: Logged
Message:
every time some one mentions oil
we get the spam/scam artist
& his 5 page essay
|
hey
Dodge Dakota
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7/25/2007
12:45:26
| RE: 10w30/5w30?
IP: Logged
Message:
What is your beef?
Amsoilsponsor answered souza's question.
Since he is a site sponsor, he can answer.
The truth is anyone can answer.
Why didn't you attack .boB for his answer?
Why didn't you answer souza's question?
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yepp
Dodge Dakota
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7/25/2007
13:01:28
| RE: 10w30/5w30?
IP: Logged
Message:
hey = Steve
plain and simple eat Sh!t
there was plenty of responses to souza's
question & you can head here and get yourself a FREE catalog http://www.go%uckyourself.com/
replace % with F
|
GB2000
GenIII
7/25/2007
13:22:21
| RE: 10w30/5w30?
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Message:
"If you don't have anything nice to say..."
|
hey
Dodge Dakota
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7/25/2007
13:38:53
| RE: 10w30/5w30?
IP: Logged
Message:
yepp,
Ha Ha. Guess again fool. I'm not Steve.
Why didn't you answer souza's question?
What's your beef with Amsoilsponsor?
Proverb. If you add nothing you take away.
|
DuH
Dodge Dakota
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7/25/2007
22:41:28
| RE: 10w30/5w30?
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Message:
can we say Derrrrrrrrrrrrrr
i'll 2nd it
Eat Sheet!!!!
ta hell with amsoil
its all a scam
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souza
Dodge Dakota
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7/26/2007
07:24:00
| RE: 10w30/5w30?
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Message:
Thanx for the useful advice and suggestions TO THOSE WHO HELPED.
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mikey
Dodge Dakota
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7/26/2007
09:12:04
| RE: 10w30/5w30?
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Message:
Me like good oil me olny buy wal mart oil or K Mart oil that oil good.. very good!!The big book in my car says to buy 10 w 30 so that what i buy but olny wal mart or k mart oil cuz it be good oil!!! hope me helped u
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.boB
Dodge Dakota
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7/26/2007
15:00:32
| RE: 10w30/5w30?
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Message:
>> Thanx for the useful advice and suggestions TO THOSE WHO HELPED. <<
You're welcome.
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The End
Dodge Dakota
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12/17/2007
16:45:36
| RE: 10w30/5w30?
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Message:
The End
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zshdjdghjdghs
Dodge Dakota
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12/29/2007
23:41:22
| RE: 10w30/5w30?
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