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Old 09-27-2002, 06:08 PM   #1
LWG
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Member#: 15921
Join Date: Mar 2002
Location: Littleton, CO
Default 5W-30 or 10W-30 for Denver area?

Which weight of oil should I use? The manual recommends 5W-30 year round except in very hot climates. I will change to Synthetics on my next oil change and wanted to get an idea on what weight oil locals (Denver) were using due to our unique climate.
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Old 09-27-2002, 10:45 PM   #2
hotrod
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Member#: 14141
Join Date: Jan 2002
Location: 13.239@102.85 @ 5800 ft on 13T
Vehicle:
2002 Impreza WRX

Default go with the 5w - 30

Given it is fall and we are moving into winter, I'd go with the 5W-30 given the choices you gave. Your starter motor will love you if we have a severe cold snap in late January.

I don't know how much time you spend up in the mountains in the winter time, but if you do, I would even consider one of the 0w weight oils.

Since I started running the lighter weight synthetic oils I have not had to replace a starter motor on any of my cars for over 15 years.

Larry
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Old 09-28-2002, 11:11 AM   #3
Strepto
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Member#: 252
Join Date: Sep 1999
Location: San Antonio, TX
Vehicle:
2001 Arctic White
Camaro SS #1800

Default

I use 5w-30 year round. I tried 10w-30 a few years back and when it gets really cold then engine does seem to act a bit "funny" untill it warms up. Durring the rest of the year 10w-30 is fine though.
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