pt88

Champion Author
North Carolina
Posts:2,423 Points:711,100 Joined:Dec 2009
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Message Posted: May 12, 2013 9:04:13 AM
no
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jonjon57

Champion Author
Raleigh
Posts:2,447 Points:634,910 Joined:May 2011
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Message Posted: May 12, 2013 7:34:21 AM
No
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coach39

Champion Author
Pittsburgh
Posts:3,690 Points:1,042,100 Joined:Sep 2005
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Message Posted: May 12, 2013 7:31:14 AM
no
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mandydonnaprinc

Champion Author
Hamilton
Posts:4,025 Points:1,940,450 Joined:Sep 2006
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Message Posted: May 12, 2013 7:12:49 AM
never
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forestghost07

Veteran Author
Miami
Posts:292 Points:4,000 Joined:Apr 2013
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Message Posted: May 10, 2013 11:39:20 PM
surely you meant heavier, not lighter oil? Anyways, that's not nec. these days in newer engines.
I do go lighter in the coolest months here with my old car's oil ... from 20W 50 (Valvoline VR1)to 15W 40 (Shell Rotella) Dec thru March
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mandydonnaprinc

Champion Author
Hamilton
Posts:4,025 Points:1,940,450 Joined:Sep 2006
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Message Posted: May 10, 2013 5:51:31 PM
no
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MOREDLEG

Champion Author
Missouri
Posts:2,661 Points:612,160 Joined:May 2011
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Message Posted: May 10, 2013 11:36:12 AM
NO
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kiatoindos

Veteran Author
Chicago
Posts:441 Points:82,105 Joined:Dec 2012
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Message Posted: May 10, 2013 11:21:11 AM
wouldn't you use a heaver oil when its hot?
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JCLNC

All-Star Author
Greensboro
Posts:902 Points:218,460 Joined:Jun 2011
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Message Posted: May 9, 2013 2:59:15 AM
no
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Need_Batteries

Champion Author
Vancouver
Posts:2,881 Points:645,205 Joined:Jun 2011
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Message Posted: May 9, 2013 2:33:50 AM
5w30 all year round...sometimes 5w20 during the winter months...it depends on whether there is a sale beforehand.
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kiatoindos

Veteran Author
Chicago
Posts:441 Points:82,105 Joined:Dec 2012
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Message Posted: May 8, 2013 9:42:58 PM
No
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petromonitor

Champion Author
Toronto
Posts:2,381 Points:519,655 Joined:Nov 2011
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Message Posted: May 8, 2013 9:32:24 PM
No
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steffy628

Champion Author
Pennsylvania
Posts:1,776 Points:451,250 Joined:Apr 2011
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Message Posted: May 8, 2013 7:26:47 PM
No
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Seekingone

Champion Author
Louisville
Posts:3,527 Points:968,150 Joined:Aug 2006
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Message Posted: May 8, 2013 7:33:00 AM
no
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RNF

Champion Author
Indiana
Posts:7,105 Points:2,874,940 Joined:Jun 2004
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Message Posted: May 8, 2013 6:48:21 AM
No
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MertieMan

Champion Author
Lexington
Posts:14,793 Points:2,896,585 Joined:May 2005
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Message Posted: May 8, 2013 5:26:28 AM
I use the same oil all year around.
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streetirsx

Veteran Author
North Dakota
Posts:342 Points:123,975 Joined:Nov 2012
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Message Posted: May 7, 2013 7:22:23 PM
NO, Royal Purple gets the same performance during the summer or extreme winter in my area
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cogas1

Veteran Author
Colorado
Posts:399 Points:333,015 Joined:Mar 2012
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Message Posted: May 7, 2013 6:31:38 PM
Never.
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mandydonnaprinc

Champion Author
Hamilton
Posts:4,025 Points:1,940,450 Joined:Sep 2006
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Message Posted: May 7, 2013 7:21:13 AM
no
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coach39

Champion Author
Pittsburgh
Posts:3,690 Points:1,042,100 Joined:Sep 2005
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Message Posted: May 7, 2013 6:31:42 AM
No
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Maxer105

Champion Author
New Jersey
Posts:2,082 Points:290,715 Joined:Jun 2012
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Message Posted: May 7, 2013 6:15:51 AM
no
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RalphHightower

Champion Author
South Carolina
Posts:3,309 Points:690,455 Joined:May 2011
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Message Posted: May 7, 2013 6:05:01 AM
no
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63pioneer

Champion Author
Texas
Posts:2,027 Points:58,105 Joined:Feb 2012
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Message Posted: May 7, 2013 5:56:17 AM
No, use Rotella 10w40 year round!
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PhilnTX

All-Star Author
Dallas
Posts:656 Points:436,830 Joined:Sep 2011
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Message Posted: May 6, 2013 11:43:30 AM
I don't change
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PatAZ

Champion Author
Tucson
Posts:9,249 Points:122,380 Joined:May 2008
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Message Posted: May 6, 2013 11:12:22 AM
I use synthetic in both cars year round without any changes.
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davisadm

All-Star Author
Los Angeles
Posts:572 Points:410,600 Joined:Dec 2011
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Message Posted: May 6, 2013 10:35:28 AM
If you did change viscosities, it would be the opposite of what the topic says: a heavier oil in summer, and a LIGHTER oil in winter.
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Hanski

All-Star Author
Modesto
Posts:519 Points:188,810 Joined:Mar 2010
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Message Posted: May 6, 2013 10:01:09 AM
no
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jack4141

Champion Author
Alabama
Posts:2,985 Points:694,580 Joined:Mar 2011
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Message Posted: May 6, 2013 9:27:27 AM
No
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olympusman2004

Champion Author
Maryland
Posts:1,676 Points:370,530 Joined:Apr 2012
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Message Posted: May 6, 2013 9:21:57 AM
n
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metalhat73

Veteran Author
Wilmington
Posts:374 Points:241,605 Joined:May 2012
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Message Posted: May 6, 2013 9:03:12 AM
I use synthetic 0W-20 all year.
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Boyrr

Champion Author
Allentown
Posts:15,186 Points:3,164,855 Joined:May 2004
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Message Posted: May 6, 2013 7:55:00 AM
I run 5-20 year round.
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sheba24

Champion Author
Long Island
Posts:2,310 Points:633,030 Joined:May 2011
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Message Posted: May 6, 2013 7:19:46 AM
10w-30w all year
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coach39

Champion Author
Pittsburgh
Posts:3,690 Points:1,042,100 Joined:Sep 2005
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Message Posted: May 6, 2013 6:36:08 AM
No
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petromonitor

Champion Author
Toronto
Posts:2,381 Points:519,655 Joined:Nov 2011
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Message Posted: May 5, 2013 10:40:43 PM
No
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hjl17

Champion Author
Toronto
Posts:2,834 Points:614,570 Joined:Jul 2011
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Message Posted: May 5, 2013 5:46:30 PM
no
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tkawashima

Champion Author
Honolulu
Posts:3,763 Points:910,100 Joined:Sep 2010
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Message Posted: May 5, 2013 1:41:44 PM
no
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geno700

Veteran Author
British Columbia
Posts:341 Points:168,675 Joined:Sep 2012
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Message Posted: May 5, 2013 11:51:24 AM
no. a heavier grade
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pt88

Champion Author
North Carolina
Posts:2,423 Points:711,100 Joined:Dec 2009
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Message Posted: May 5, 2013 9:47:05 AM
no
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coach39

Champion Author
Pittsburgh
Posts:3,690 Points:1,042,100 Joined:Sep 2005
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Message Posted: May 5, 2013 8:48:03 AM
no
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mandydonnaprinc

Champion Author
Hamilton
Posts:4,025 Points:1,940,450 Joined:Sep 2006
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Message Posted: May 5, 2013 7:50:47 AM
no
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dgsteven

All-Star Author
Los Angeles
Posts:802 Points:207,775 Joined:Oct 2012
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Message Posted: May 5, 2013 3:46:41 AM
no
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sks1586

All-Star Author
New Jersey
Posts:585 Points:49,410 Joined:Mar 2013
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Message Posted: May 4, 2013 3:05:04 PM
No. Houckster - Thanks a million for the information
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pezbep

Rookie Author
Miami
Posts:93 Points:115,110 Joined:Sep 2012
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Message Posted: May 4, 2013 2:16:32 PM
no - synthetic only does not require it for city driving
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zardoz74

Veteran Author
Houston
Posts:261 Points:21,950 Joined:Apr 2013
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Message Posted: May 4, 2013 2:14:53 PM
No.
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tkawashima

Champion Author
Honolulu
Posts:3,763 Points:910,100 Joined:Sep 2010
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Message Posted: May 4, 2013 12:51:44 PM
no
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davisadm

All-Star Author
Los Angeles
Posts:572 Points:410,600 Joined:Dec 2011
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Message Posted: May 4, 2013 12:32:21 PM
Multi-viscosity oils are designed to be used in all climates.
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mybigtruck

Sophomore Author
San Jose
Posts:136 Points:199,875 Joined:Oct 2009
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Message Posted: May 4, 2013 11:47:07 AM
nope. I use regular dino juice all the time. Worked perfectly well on all my cars at 235K, 165K, and 135K miles when I donated them
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blckwolf

Veteran Author
North Carolina
Posts:290 Points:75,020 Joined:Nov 2008
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Message Posted: May 4, 2013 11:37:42 AM
Nope. I use full synthetic in all my vehicles, and always use the manufacturer recommendations.
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BUSSY

Champion Author
Dallas
Posts:9,912 Points:1,542,465 Joined:Oct 2006
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Message Posted: May 4, 2013 11:06:53 AM
5w/20w year round.
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Houckster

Champion Author
Atlanta
Posts:9,346 Points:693,480 Joined:Sep 2003
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Message Posted: May 4, 2013 10:20:02 AM
The Popular Mechanics article is dead wrong about one thing. They state:
While we're on the topic of oil, it's worth taking a moment to demystify synthetic oil. Synthetics are really just natural oil refined to a much higher degree, with more complex additive packages for improving performance in both everyday and extreme conditions. _____ This is a very misleading statement because there is no technical definition for "synthetics" in SAE standards. In the US, a synthetic oil can be just about anything the marketer wants it to be. Many of the most well-known marketers like Mobil, Pennzoil, and Castrol use Group III petroleum and call it "synthetic". Today, even the most well-known "synthetic", Mobil 1 is mostly Group III petroleum.
Group III petroleum is definitely better than Group II oils but true synthetic lubes made by Synlube, Redline and Amsoil (Signature line) are still better and they don't cost much more than the pretenders on a per mile basis. They are found in API Group IV and V.
[Edited by: Houckster at 5/4/2013 10:22:19 AM EST]
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