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Running 0w-30 vs 5w-30 #4596493
12/06/17 08:14 PM
12/06/17 08:14 PM
Joined: Dec 2017
Posts: 3
KS
Kenwood Offline OP
Kenwood  Offline OP
Joined: Dec 2017
Posts: 3
KS
I have a 2000 Toyota Avalon with 140k miles that calls for 5w-30 oil and am considering running ow-30 at the next oil change in hopes of a slight mpg increase. Is there any advantages or disadvantages to switching? I have been reading a few of these oil threads and the knowledge you guys have of oil is impressive.

Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596499
12/06/17 08:19 PM
12/06/17 08:19 PM
Joined: Jul 2009
Posts: 744
texas
danez_yoda Offline
danez_yoda  Offline
Joined: Jul 2009
Posts: 744
texas
Will be fine.

Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596508
12/06/17 08:22 PM
12/06/17 08:22 PM
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
Of the two, I'd take the 0W-XX anytime. Better chemistry and better anti-shear stability smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596510
12/06/17 08:23 PM
12/06/17 08:23 PM
Joined: Jun 2016
Posts: 3,566
MN
oil_film_movies Offline
oil_film_movies  Offline
Joined: Jun 2016
Posts: 3,566
MN
Thats an older car. I'd use a "High Mileage" oil, 5w30 full synthetic in it. Any brand at walmart really. There isn't much difference in flow between a 5w30 and the Mobil1 AFE 0w30 oil.
High Mileage oils keep the seals flexible better so they are less likely to leak.

Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596512
12/06/17 08:23 PM
12/06/17 08:23 PM
Joined: Jan 2008
Posts: 10,956
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,956
OH
Which 0w30 were you considering? I'd go for it if I could find one at Walmart for the same price as 5w30. Otherwise, I'd stick to the 5w30.

Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596524
12/06/17 08:30 PM
12/06/17 08:30 PM
Joined: Mar 2017
Posts: 6,486
...
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 6,486
...
You should be able to run the 0w-30 but don’t expect any fuel economy gains. If there are any gains they would be too small to measure. Driving style, proper tire inflation and a well maintained engine will do far more for fuel economy.


Cannot see signatures any longer so it doesn’t matter.
Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596538
12/06/17 08:38 PM
12/06/17 08:38 PM
Joined: Dec 2016
Posts: 7,132
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,132
Waco, TX
Originally Posted By: Kenwood
in hopes of a slight mpg increase.


Prepare to be disappointed.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Running 0w-30 vs 5w-30 [Re: Linctex] #4596621
12/06/17 09:41 PM
12/06/17 09:41 PM
Joined: Oct 2009
Posts: 3,510
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,510
Wet side WA
Originally Posted By: Linctex
Originally Posted By: Kenwood
in hopes of a slight mpg increase.


Prepare to be disappointed.



thumbsup


2004 Corolla 126649
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74478
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Running 0w-30 vs 5w-30 [Re: PimTac] #4596647
12/06/17 10:16 PM
12/06/17 10:16 PM
Joined: Nov 2011
Posts: 4,967
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 4,967
MTL, CANADA
Originally Posted By: PimTac
You should be able to run the 0w-30 but don’t expect any fuel economy gains. If there are any gains they would be too small to measure. Driving style, proper tire inflation and a well maintained engine will do far more for fuel economy.


+1


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596702
12/07/17 12:06 AM
12/07/17 12:06 AM
Joined: Apr 2016
Posts: 1,585
Oregon
1JZ_E46 Offline
1JZ_E46  Offline
Joined: Apr 2016
Posts: 1,585
Oregon
Generally a 0W-30 will be a higher quality base oil for a given specification over 5W-30, as it must meet tougher cold temperature tests. This is part of the reason why they cost more.

Last edited by 1JZ_E46; 12/07/17 12:07 AM.

2007 X5 4.8i: M1 HM 10W-30
2016 Countryman S: EDGE 0W-30
Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596721
12/07/17 01:04 AM
12/07/17 01:04 AM
Joined: Aug 2016
Posts: 661
New Jersey
THafeez Offline
THafeez  Offline
Joined: Aug 2016
Posts: 661
New Jersey
I'm running it and it's fine. MPG will vary with every car. Cold starts are very smooth and the oil level hasn't moved in my oil burner.


2004 Toyota Solara SE 2.4 2AZFE
182,000 miles
Castrol Magnatec Semi-Syn 5W30
Royal Purple 20-400 oversize 2nd run
Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596764
12/07/17 04:52 AM
12/07/17 04:52 AM
Joined: Dec 2005
Posts: 1,583
Wilmington, NC
harry j Offline
harry j  Offline
Joined: Dec 2005
Posts: 1,583
Wilmington, NC
0W-30 is the best option.

Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596806
12/07/17 07:08 AM
12/07/17 07:08 AM
Joined: Jun 2015
Posts: 4,412
New England
Virtus_Probi Offline
Virtus_Probi  Offline
Joined: Jun 2015
Posts: 4,412
New England
Originally Posted By: Kenwood
I have a 2000 Toyota Avalon with 140k miles that calls for 5w-30 oil and am considering running ow-30 at the next oil change in hopes of a slight mpg increase. Is there any advantages or disadvantages to switching? I have been reading a few of these oil threads and the knowledge you guys have of oil is impressive.


Hi Kenwood, unless you're doing a lot of really short tripping with long cooldowns between trips you might see a little gas mileage benefit from using an XW30 that has a low viscosity for its grade at operating temperature (~100C for many gas vehicles).
There has been a lot of discussion here about recent changes in many oil formulations to meet dexos1 Gen 2 specs (GM standard for which most mass market oils are going to want to have a license) and we noticed that the last Pennzoil Platinum 5W30 has a lower viscosity at 100C (9.8 cSt) than, say, Mobil 1 5W30 (11 cSt). I would think that PP is still going to do a good job of protecting your engine and the 5W30 might result in better fuel economy than many of its competitors if you are making reasonably long trips where the engine is mostly warmed up.
Not a Pennzoil fanboy here, I have never used it in my vehicle but did just put some PP 0W20 in my daughter's Impreza.
If you end up doing a lot of really cold starts (like way below zero) where the engine has truly gotten down to the ambient temperature, I could see the 0W30 having some effect upon mileage compared to a 5W30 with a similar operating temp viscosity. But, I honestly doubt many people would see a gas mileage benefit from using a typical 0W30 vs. a 5W30 even in winter.
Just my two cents worth and welcome to BITOG!


2014 Forester XT, 90000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter
Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4596963
12/07/17 09:37 AM
12/07/17 09:37 AM
Joined: Dec 2017
Posts: 3
KS
Kenwood Offline OP
Kenwood  Offline OP
Joined: Dec 2017
Posts: 3
KS
I am currently running Mobil 1 HM 5w30 and just changed it a couple weeks ago. I didn't figure there would be much of a mpg increase but any little bit would be good. I won't likely change the oil again until late spring comes around and I thought 5w30 may be better in the warm months of the year and 0w30 for the winter months. I only drive about 6k miles a year in this car so I will likely change the oil every 6 months or so. Thank you everyone for your responses.

Re: Running 0w-30 vs 5w-30 [Re: Kenwood] #4599390
12/09/17 09:07 PM
12/09/17 09:07 PM
Joined: Dec 2005
Posts: 1,583
Wilmington, NC
harry j Offline
harry j  Offline
Joined: Dec 2005
Posts: 1,583
Wilmington, NC
0W-30 is good year round. I have been Using 0W-30 in my 1993 Civic since it had 118,000 miles,

Now with 488,000 miles on the clock I can highly recommend this oil.

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