Oil weight question
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New User
Joined: Mar 2004
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From: SC
Oil weight question
5w or 10w??? What is everyone's opinion?
I have used both....
But recently I have noticed some rattling when I press the accelerator after releasing it for several seconds...any idea the cause of this?
Also...are all expy's power steering noisy? Fluid level is fine....just noisy?
Thanks
I have used both....
But recently I have noticed some rattling when I press the accelerator after releasing it for several seconds...any idea the cause of this?
Also...are all expy's power steering noisy? Fluid level is fine....just noisy?
Thanks
Elder User
Joined: Jun 2004
Posts: 679
Likes: 0
From: Orlando, Fla
Oil viscosities very per region, in Central Fla, I prefer a 0w. Reason being it stays warm here all the time, no need for multiversions. In summer up north a 5w is nice then to a 10w in winter.
5w 20 has been around mostly in crossbread oils (syntech and such). Most of the newer Ford motors are using this, as a matter of fact I believe Ford invented it. With bearing tolerances getting tighter, a thinner oil was needed to slick up these areas.
As for the power steering noise sstclair00, what year is your vehicle? If the fluid is exceptionally dirty it can cause some noise. When does it make the noise, .....turning, just sitting, all the time?
5w 20 has been around mostly in crossbread oils (syntech and such). Most of the newer Ford motors are using this, as a matter of fact I believe Ford invented it. With bearing tolerances getting tighter, a thinner oil was needed to slick up these areas.
As for the power steering noise sstclair00, what year is your vehicle? If the fluid is exceptionally dirty it can cause some noise. When does it make the noise, .....turning, just sitting, all the time?
Tuned
Joined: Nov 2003
Posts: 447
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From: SoCal
Found on: AutoEducation.com
Oils meeting the SAE's low temperature requirements have a "W" after the viscosity rating (example: 10W), and oils that meet the high ratings have no letter (example SAE 30). An oil is rated for viscosity by heating it to a specified temperature, and then allowing it to flow out of a specifically sized hole. Its viscosity rating is determined by the length of time it takes to flow out of the hole. If it flows quickly, it gets a low rating. If it flows slowly, it gets a high rating.
Engines need oil that is thin enough for cold starts, and thick enough when the engine is hot. Since oil gets thinner when heated, and thicker when cooled, most of us use what are called multi-grade, or multi-viscosity oils. These oils meet SAE specifications for the low temperature requirements of a light oil and the high temperature requirements of a heavy oil. You will hear them referred to as multi-viscosity, all-season and all-weather oils. An example is a 10W-30 which is commonly found in stores. When choosing oil, always follow the manufacturer's recommendation.
Oils meeting the SAE's low temperature requirements have a "W" after the viscosity rating (example: 10W), and oils that meet the high ratings have no letter (example SAE 30). An oil is rated for viscosity by heating it to a specified temperature, and then allowing it to flow out of a specifically sized hole. Its viscosity rating is determined by the length of time it takes to flow out of the hole. If it flows quickly, it gets a low rating. If it flows slowly, it gets a high rating.
Engines need oil that is thin enough for cold starts, and thick enough when the engine is hot. Since oil gets thinner when heated, and thicker when cooled, most of us use what are called multi-grade, or multi-viscosity oils. These oils meet SAE specifications for the low temperature requirements of a light oil and the high temperature requirements of a heavy oil. You will hear them referred to as multi-viscosity, all-season and all-weather oils. An example is a 10W-30 which is commonly found in stores. When choosing oil, always follow the manufacturer's recommendation.
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
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From: Washington State
Originally Posted by High_Horse
In summer up north a 5w is nice then to a 10w in winter.
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Logistics Pro
Joined: Oct 2000
Posts: 3,960
Likes: 5
From: All over Texas
I've run both and noticed no difference, but I'm in Houston....there's not much need for a super thin winter oil down here. In fact I've read many technical articles that specifically say the additives used to lower the W viscosity are actually very bad for the engine.
Yes, the power steering pumps are inherently noisy. Some say flushing and refilling will help. Others even recommend using synthetic for even more noise reduction.
Yes, the power steering pumps are inherently noisy. Some say flushing and refilling will help. Others even recommend using synthetic for even more noise reduction.
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Elder User
Joined: Jun 2004
Posts: 679
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From: Orlando, Fla
So right Monsta, this Florida sun seems to have caused confusion on my whittle mind.. ....especially after contracting up north all freezing winter....maybe I need a lighter weight blood to stop the restriction...lol.
....especially after contracting up north all freezing winter....maybe I need a lighter weight blood to stop the restriction...lol.
Elder User
Joined: Nov 2002
Posts: 736
Likes: 1
From: Texas, USA
I recommend staying with the 5w the way your manual indicates, because it flows well under all temp. conditions, lubes and pumps faster after a cold startup and increases gas mileage over a heavier weight oil.
Senior User
Joined: May 2003
Posts: 329
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From: Wichita, Kansas
Originally Posted by tsdrallyer
I recommend staying with the 5w the way your manual indicates, because it flows well under all temp. conditions, lubes and pumps faster after a cold startup and increases gas mileage over a heavier weight oil.
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