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Thin to thick oil converts? #4514136
09/12/17 10:31 AM
09/12/17 10:31 AM
Joined: Apr 2017
Posts: 438
Mississippi
Speak2Mountain Offline OP
Speak2Mountain  Offline OP

Joined: Apr 2017
Posts: 438
Mississippi
I'm thinking of switching over to 30w oil in all my fam's vehicles except daughter's Lexus Hybrid.

Been running 0w-20 in wife's Sienna (no issues..yet), 5w-20 in my DI Lexus and son's Avalanche.

Sienna is well over 150k
My Lexus is approaching 130k
Kid's cars are around 90k

Now that gas $ have settled, I'm less concerned about that and more about cleanliness of engine and long-term reliability.
I'd like to hear your stories of your switch.

Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514140
09/12/17 10:41 AM
09/12/17 10:41 AM
Joined: Dec 2005
Posts: 10,899
Upper Midwest
kschachn Offline
kschachn  Offline

Joined: Dec 2005
Posts: 10,899
Upper Midwest
We needed another thread today on the thick-vs-thin debate?


1994 BMW 530i, 241K
1996 Honda Accord, 267K
1999 Toyota Sienna, 409K
2000 Toyota ECHO, 280K
Re: Thin to thick oil converts? [Re: kschachn] #4514147
09/12/17 10:45 AM
09/12/17 10:45 AM
Joined: Jun 2005
Posts: 11,947
Santa Barbara, CA
bdcardinal Offline
bdcardinal  Offline

Joined: Jun 2005
Posts: 11,947
Santa Barbara, CA
Originally Posted By: kschachn
We needed another thread today on the thick-vs-thin debate?


There is a one per day quota, sometimes we like to be above average.

FWIW My Mustang takes 5W50 and my mom's Ecoboost Fusion calls for 5W30 but gets 0W40.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514149
09/12/17 10:46 AM
09/12/17 10:46 AM
Joined: Feb 2015
Posts: 2,595
Slovenia EU
Kamele0N Offline
Kamele0N  Offline

Joined: Feb 2015
Posts: 2,595
Slovenia EU
Just switch to sae 30/40 oil thumbsup

Leave sae20 oily water for.....

Last edited by Kamele0N; 09/12/17 10:47 AM.

2008 Toyota Yaris 1ND-TV 1.4 D4-D Elf FullTech FE 5w30
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514150
09/12/17 10:47 AM
09/12/17 10:47 AM
Joined: Apr 2017
Posts: 1,520
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline

Joined: Apr 2017
Posts: 1,520
Ontario, Canada
All my cars get 0W40.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Thin to thick oil converts? [Re: Kamele0N] #4514155
09/12/17 10:52 AM
09/12/17 10:52 AM
Joined: Mar 2006
Posts: 5,903
Buffalo, NY
Nickdfresh Offline
Nickdfresh  Offline

Joined: Mar 2006
Posts: 5,903
Buffalo, NY
Originally Posted By: Kamele0N
Just switch to sae 30/40 oil thumbsup

Leave sae20 oily water for.....


...vehicles well in excess of 150,000 miles?

Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514162
09/12/17 10:57 AM
09/12/17 10:57 AM
Joined: Apr 2012
Posts: 3,159
Boston, MA
Bgallagher Offline
Bgallagher  Offline

Joined: Apr 2012
Posts: 3,159
Boston, MA
20-30 down south is nothing. To be honest I don't think it will make any difference. That being said your vehicles seem to be doing fine with thinner oil. Why change?


2017 Chevy Traverse - 28k - Delco Dexos 1 and PF63
2014 Chevy Equinox - 22k - Delco Dexos 1 and PF457G
2015 GMC Terrain - 22k- Delco Dexos 1 and PF457G
Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514166
09/12/17 11:04 AM
09/12/17 11:04 AM
Joined: Aug 2011
Posts: 9,560
Boston, MA
HerrStig Offline
HerrStig  Offline

Joined: Aug 2011
Posts: 9,560
Boston, MA
I'd use the oil suggested for use in Australia for the same vehicle. You're not in the upper Midwest.

Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514174
09/12/17 11:13 AM
09/12/17 11:13 AM
Joined: May 2009
Posts: 12,459
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline

Joined: May 2009
Posts: 12,459
N.H, U.S.A.
5w20 should be "cleaner running" than a 5w30.

How bout you just substitute a qt of 5w40 instaed of going "all In".

My Rogue engine likes it as thin as it will go just before it starts mechanical clattering. This is about 1 qt of 5w20 into 4 qts of 10w30.

Last edited by ARCOgraphite; 09/12/17 11:14 AM.

2019 VW Jetta S,6M OCI#0 1136mi-Castrol Edge Prof? VW508+OE Filter; '17 Subaru Crosstrek CVT OC#6 43467mi-Valvoline Adv 0w20 + SOA Filter
Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514177
09/12/17 11:17 AM
09/12/17 11:17 AM
Joined: Oct 2015
Posts: 2,930
Balearic Islands , Spain
FordCapriDriver Offline
FordCapriDriver  Offline

Joined: Oct 2015
Posts: 2,930
Balearic Islands , Spain
I'm not in the thick or thin oil camp, it's a ridiculous debate.
I just use what i deem convenient for my cars.
And yes, that means that i run 20W-50 Dino in both of my cars, one because it specs 20W-50 and the other because it burns oil and it's a beater.


1975 Ford Capri II Ghia 3000 V6, - Shell Helix HX3 20W-50 w/ 20% Rimula R4X 15W-40 HDEO.
1988 Ford Escort XR3i Cabrio, - Shell Rimula R4X 15W-40, w/ 30% Helix 3 20W-50.


Re: Thin to thick oil converts? [Re: Nickdfresh] #4514180
09/12/17 11:23 AM
09/12/17 11:23 AM
Joined: Feb 2015
Posts: 2,595
Slovenia EU
Kamele0N Offline
Kamele0N  Offline

Joined: Feb 2015
Posts: 2,595
Slovenia EU
Originally Posted By: Nickdfresh
Originally Posted By: Kamele0N
Just switch to sae 30/40 oil thumbsup

Leave sae20 oily water for.....


...vehicles well in excess of 150,000 miles?


In EU we leave/reserve that oily water for auxiliary vehicles.... A.k.a hybrids... smile


2008 Toyota Yaris 1ND-TV 1.4 D4-D Elf FullTech FE 5w30
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514198
09/12/17 11:50 AM
09/12/17 11:50 AM
Joined: Sep 2010
Posts: 2,212
GA.
ChrisD46 Offline
ChrisD46  Offline

Joined: Sep 2010
Posts: 2,212
GA.
My take on thin versus thick oil debate : Hyundai Kia state 5W20 is preferred but also endorse 5W30 and 10W30 as ambiant temp conditions dictate or when towing , driving up hills " . That tells me that 5W20 is marginal in Kia / Hyundai engines except for benign conditions (i.e. a CAFE play ) therefore I prefer a 5W30 or 10W30 synthetic .


2017 Hyundai Sonata 2.4L GDI 4 cylinder
2010 Hyundai Elantra 2.0L 4 cylinder
2007 Kia Sedona 3.8L 6 cylinder
Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514202
09/12/17 12:02 PM
09/12/17 12:02 PM
Joined: Feb 2013
Posts: 11,342
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline

Joined: Feb 2013
Posts: 11,342
Phoenix, AZ
Why would you put 5w20 in an Avalanche in the first place?


2015 Hyundai Sonata 2.4L 92k STP Synthetic HM 10w30 & Wix
2000 Toyota Camry 2.2L 233k Mobil Super HM 10w40 & Fram Ultra
1996 Jeep Cherokee 4.0L 148k Mobil 1 HM 10w40 & Fram Ultra
Re: Thin to thick oil converts? [Re: Speak2Mountain] #4514207
09/12/17 12:09 PM
09/12/17 12:09 PM
Joined: Aug 2002
Posts: 14,859
Silicon Valley
PandaBear Offline
PandaBear  Offline

Joined: Aug 2002
Posts: 14,859
Silicon Valley
Switched from 0w20 / 5w20 to 10w30 of low NoACK synthetic (PU at the moment) to reduce intake valve deposit and change it at 5k miles. I remember reading a study online from a Korean university / research org / manufacturer that their testing sees that group 4 base oil and reduced OCI help, as well as high engine load to burn it off the intake valve.

Prius is staying with 0w20 due to stop start engine, but will use M1EP at 10k miles OCI like The Critics does, to reduce probability of ring deposit related oil burn common on Prius.

Not really thin to thick but do have a reason for switch.

Last edited by PandaBear; 09/12/17 12:11 PM.

"You keep asking questions PandaBear and you'll end up a vegetarian like my wife" - Camu Mahubah
Re: Thin to thick oil converts? [Re: Kamele0N] #4514219
09/12/17 12:30 PM
09/12/17 12:30 PM
Joined: Mar 2006
Posts: 5,903
Buffalo, NY
Nickdfresh Offline
Nickdfresh  Offline

Joined: Mar 2006
Posts: 5,903
Buffalo, NY
Originally Posted By: Kamele0N
Originally Posted By: Nickdfresh
Originally Posted By: Kamele0N
Just switch to sae 30/40 oil thumbsup

Leave sae20 oily water for.....


...vehicles well in excess of 150,000 miles?


In EU we leave/reserve that oily water for auxiliary vehicles.... A.k.a hybrids... smile


Because you lazy socialists never change your oil... wink grin

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