5w-20 in hot weather?

Mitsubishi Forum Classifieds Photo Gallery Timeslips Member List Search Sponsors Contact MF
Mitsubishi Lineup Mitsubishi News Recalls TSBs Timeslips Calendars Register Login

5w-20 in hot weather?

Printable Version

Mitsubishi Forums >> Mitsubishi Models >> Mitsubishi Outlander >> 5w-20 in hot weather?

Page: [1]

Message

<< Older Topic Newer Topic >>

5w-20 in hot weather? - 1/23/2008 3:47:15 PM

tufduck

Posts: 121
Joined: 8/26/2007
Status: offline

So i was just wondering. I know the recommended oil for the outtie is 5w-20. But during driving in hot weather, doesn't that grade breaks down more and you would have to change the oil more oftern?

Did anyone tried a thicker grade? 5w-30? or similar.

Post #: 1

RE: 5w-20 in hot weather? - 1/23/2008 5:58:14 PM

chenarm

Posts: 285
Joined: 11/21/2007
Status: offline

5w-20 will not necessarily break down faster, it will just have a lower viscosity when it's hot. Synthetic oil will take longer to break down, and you can get it in 5W-20 or 30.

_____________________________

Marc

(in reply to tufduck)

Post #: 2

RE: 5w-20 in hot weather? - 1/24/2008 7:56:22 AM

bnilguy

Posts: 263
Joined: 4/20/2007
Status: offline

The Used Oil Analyses I've seen on 5w-20 show that it holds up pretty well, Probably becaue it has to.

But I don't think using 5w30 is a bad thing either, especially in hot weather and if you're going over 5K on the intervals, or if you tow

Right now I'm using M1 5w30, mostly because I had a jug of it left over..no problems.

_____________________________

2007 Outlander XLS 2WD..Black on Black

(in reply to chenarm)

Post #: 3

RE: 5w-20 in hot weather? - 1/24/2008 9:12:30 AM

Sergy

Posts: 98
Joined: 12/19/2007
Status: offline

We have 15000km service interval.
Dealer use 5W-50 or 0W-40 synthetic Mobil-1 as "all-season" engine lubricant.
I attach SAE recommended table

Thumbnail Image

Sorry for it quality but as I know second number after "W-" in class defines average "summer" temperature for this oil.

Thumbnail Image

Attachment (2)

< Message edited by Sergy -- 1/24/2008 9:30:23 AM >

_____________________________

Russian Outlander club: www.out-club.ru
login: Guest
pass: welcome
---
English-speaking area: http://www.out-club.ru/board/showthread.php?t=7000

(in reply to bnilguy)

Post #: 4

RE: 5w-20 in hot weather? - 1/24/2008 12:42:23 PM

bnilguy

Posts: 263
Joined: 4/20/2007
Status: offline

20 weight oil is a North American Phenomenon..one that only gains about 1% in fuel economy over 30 weight..in Europe you see a lot of cars speced for 40 weight

_____________________________

2007 Outlander XLS 2WD..Black on Black

(in reply to Sergy)

Post #: 5

RE: 5w-20 in hot weather? - 1/24/2008 1:31:11 PM

tufduck

Posts: 121
Joined: 8/26/2007
Status: offline

oh ok cool b/c one of the mitsubishi mechanic said 5w-30 is suitable for hot weather like houston/miami, etc. and 5w-20 for cold states and fair weather.

sergy said you can use 5w-50? holy moly...

imma gonna try 5w-30 next oil change.

(in reply to bnilguy)

Post #: 6

RE: 5w-20 in hot weather? - 1/24/2008 1:35:14 PM

lightforce

Posts: 51
Joined: 11/2/2006
Status: offline

I think the reason why most European dealerships or service stations use a 40 weight is because it's usually recommended for diesel engines, and they apparently only want to keep 1 grade of oil.
I would assume you can get a small performance gain by using a 30 weight instead of a 40, unfortunately I won't get to try it, my dealership will stick with 5w40 I guess.
Nowadays these lower viscosity oils got much more stable I assume, and the engines are designed for it.

Side note: As most of you know many EU countries "promote" diesel-powered cars by imposing much more tax on gasoline than on diesel; what explains the success of these cars.

_____________________________

Diamonds are forever!
-Outlander 4WD 04 EU Sport, manual-

(in reply to bnilguy)

Post #: 7

RE: 5w-20 in hot weather? - 1/24/2008 1:48:20 PM

puddy

Posts: 164
Joined: 6/26/2007
Status: offline

quote:

ORIGINAL: lightforce

Side note: As most of you know many EU countries "promote" diesel-powered cars by imposing much more tax on gasoline than on diesel; what explains the success of these cars.

Diesel at the pump cost more than petrol now, the reason we buy diesel is more mpg I am getting 42mpg my old shogun sport did 25mpg and my outlander has a smaller fuel tank I am saving a round £20 every time i fill up.

I had to fill the shogun sport every 280 miles and I fill up the outlander every 480 miles

Puddy

< Message edited by puddy -- 1/24/2008 1:55:25 PM >

_____________________________

2008 UK Mitsubishi Outlander 2.0 D-ID Warroir

(in reply to lightforce)

Post #: 8

RE: 5w-20 in hot weather? - 1/25/2008 1:45:40 AM

Sergy

Posts: 98
Joined: 12/19/2007
Status: offline

quote:

ORIGINAL: tufduck

sergy said you can use 5w-50? holy moly...

But why? Can you explain, please ?

We haven't a choice petrol or diesel Outie. Gasoline only. 5W-40 or 0W-50 as motor oil. 15000km service interval.
Why you wondered?

_____________________________

Russian Outlander club: www.out-club.ru
login: Guest
pass: welcome
---
English-speaking area: http://www.out-club.ru/board/showthread.php?t=7000

(in reply to tufduck)

Post #: 9

RE: 5w-20 in hot weather? - 1/25/2008 9:21:27 AM

Fisherman

Posts: 157
Joined: 6/12/2007
Status: offline

IIRC 5W-20 not only has a lower viscosity thus improving efficiency (not by much), but it also has a higher flash point, or lower volitilty (sp?). There is supposed to be less burn off of the oil during operating conditions, thus lower Hydrocarbon emmisions. Again, it is likely so little that we would be hard pressed to see the effects on the enviroment from our individual vehicles, but when you add up millions of vehicles, the effect is real.

_____________________________

20AE IY#3600 (w/ESP) | 07 Outlander XLS 4wd

(in reply to tufduck)

Post #: 10