5w20 Vs 5w30 -s : | platizazvonok.ru
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post #1 of 14 (permalink) Old 05-23-2010, 08:31 PM Thread Starter
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mentaluproar
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Is there any difference in the 2 that might hurt my car?
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post #2 of 14 (permalink) Old 05-23-2010, 09:47 PM
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No, use what you want,, personally, I'd go 5/30, more common viscosity seen on store shelf.

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post #3 of 14 (permalink) Old 05-24-2010, 07:52 AM
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There IS a difference. The difference is viscosity and what the engine was designed to use in various conditions. 5W 20 is lighter than 5W30 and depending on where and how you operate the engine, one may be more appropriate than the other. Most car engines today tend to use a multi-grade that actually lightens it's viscosity in cooler temps allowing your engine to get good starting lubrication in a wider outside temperature range.

Also, it's not recommended to mix oil types.

The Owners Manual (back page) has this to say for the 2001 Accent:

ENGINE OIL:
SH, SG or SG/CD multigrade and fuel efficient oil. Use SAE 10W-30, 10W-40 or 10W-50 if normal temperatures are above -10F (-23C). For other viscosity recommendations, see page 6-2.

On page 6-3 actually, you'll find a chart that will show you the recommendations for your driving environment.
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post #4 of 14 (permalink) Old 06-13-2010, 10:54 PM
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QUOTE (mentaluproar May 23 2010, 08:31 PM)
Quote:
Is there any difference in the 2 that might hurt my car?

5w 20 is a thinner oil than 5w 30. These two aren't very different from one another, but it's still good to go with the recommended oil that is in your manual. The type of oil to use also depends on where you live, whether you live some place with extreme hot weather all the time, or extreme cold, or in the middle.
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post #5 of 14 (permalink) Old 06-13-2010, 11:20 PM
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QUOTE (02accentgrl Jun 13 2010, 09:54 PM)
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5w 20 is a thinner oil than 5w 30. These two aren't very different from one another, but it's still good to go with the recommended oil that is in your manual. The type of oil to use also depends on where you live, whether you live some place with extreme hot weather all the time, or extreme cold, or in the middle.
Correct I use 5/20 in the winter (cold here) & 5/30 in the summer (hot here)
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post #6 of 14 (permalink) Old 06-14-2010, 12:13 AM
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Read the manual people, 10w30 is the standard oil (very common), even the 5w30 is considered a "thin" oil only to be used when ambient is below 50F down to -13F or so on a regular basis for these cars. 5w20 is rated for 14F- -13F.

So there's no point in even considering 5w20, the oil is too thin and the potential for oil starvation (thin oil = low oil pressure = low circulation of oil through passages) is there once the engine has reached operating temperatures.

The only time I have ever used 5w20 is when the manual says so; this grade of thin oil is mainly used to satisfy fuel economy regs (thinner oil = less drag but again at the expense of lubrication), and unless the engine is designed to run on this oil I would be highly reluctant to run it, especially during the summertime.
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post #7 of 14 (permalink) Old 06-14-2010, 12:52 AM
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QUOTE (03accentb Jun 13 2010, 11:13 PM)
Quote:
Read the manual people, 10w30 is the standard oil (very common), even the 5w30 is considered a "thin" oil only to be used when ambient is below 50F down to -13F or so on a regular basis for these cars. 5w20 is rated for 14F- -13F.

So there's no point in even considering 5w20, the oil is too thin and the potential for oil starvation (thin oil = low oil pressure = low circulation of oil through passages) is there once the engine has reached operating temperatures.

The only time I have ever used 5w20 is when the manual says so; this grade of thin oil is mainly used to satisfy fuel economy regs (thinner oil = less drag but again at the expense of lubrication), and unless the engine is designed to run on this oil I would be highly reluctant to run it, especially during the summertime.
Mine calls for 5w20 year round. Could probably run 10w40 during the summer but they are recommending 5w20 for
a reason
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post #8 of 14 (permalink) Old 06-14-2010, 02:46 AM
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03accentb
QUOTE (ausom accent 9 Jun 14 2010, 12:52 AM)
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Mine calls for 5w20 year round. Could probably run 10w40 during the summer but they are recommending 5w20 for
a reason
You have an 09, the engine is most likely different. Also who is doing the recommending? Just look in the owners manual, the temp ranges and oil weights are listed pretty clearly.

I can post the 2 pages in the FSM about how to select the right grade of oil for 00-05 accents.
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post #9 of 14 (permalink) Old 06-15-2010, 12:28 AM
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I use 10W40 year-round. The OM uses 10W30 as the middle line( U.S. models). It depends what climate the vehicle is being operated. Look at the chart. You can also call your nearest dealer and ask them what is appropriate for your local.

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post #10 of 14 (permalink) Old 09-29-2010, 06:21 PM Thread Starter
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Finally back. It's that time of year to change this stuff and the cold clatter from the engine is pissing me off, so time for fresh oil. I reread this and see that 5w20 is a no-no. I still see a back and forth between 5w30 and 10w30. I want to try a higher quality oil for this winter so it's down to just the grade. Ohio winters are quite cold, and the car is parked outside year round, so I'm not sure which makes sense.

Any response by this weekend would be helpful to finally answer this odd question. (I plan on changing the oil, cleaning out and waxing the car before it gets too cold to bother, looking for dead bulbs and checking fluid conditions while it's warm enough for me to willingly do this.) I bought the car used, so no manual.
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