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#4559384 - 10/30/17 03:49 PM 0w-40 year round in Canada?
Mr_Accord Offline


Registered: 01/24/07
Posts: 446
Loc: LBP
I have a Vw golf with the 1.8T that I use as a work vehicle. I do enough mileage that I can change the oil twice a year. I usually time it so its in the springtime and in the fall. During the summer i've been putting 5w-40 Castrol, and in the Winter time Mobil1 0w-40. I'm just wondering if 0w-40 would alright year round during the summer months. I've always looked at 0w-40 for its good cold starting properties but not sure how well it holds up in the summer?

Thanks
_________________________
1990 VW Jetta GL 1.8L 8V - SOLD
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2004 SAAB 9-3 ARC 2.0T - Current

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#4559388 - 10/30/17 04:01 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
Quattro Pete Offline


Registered: 10/30/02
Posts: 35885
Loc: Great Lakes
Absolutely.
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#4559398 - 10/30/17 04:10 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
mightymousetech Offline


Registered: 04/03/17
Posts: 1444
Loc: Ontario, Canada
They are both a 40 weight when hot, why would you switch?

Even better choice would be the Castrol 0W40.


Edited by mightymousetech (10/30/17 04:11 PM)
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#4559400 - 10/30/17 04:11 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
Indydriver Offline


Registered: 03/20/11
Posts: 2153
Loc: Indiana
Id be more concerned about 0W-40 startup in severe cold. What does VW spec?
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#4559406 - 10/30/17 04:14 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
rooflessVW Offline


Registered: 12/24/11
Posts: 4078
Loc: North Carolina
I'd use Mobil or Castrol (my preference) 0W-40 year round in almost anything, almost anywhere.
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#4559409 - 10/30/17 04:16 PM Re: 0w-40 year round in Canada? [Re: Indydriver]
Quattro Pete Offline


Registered: 10/30/02
Posts: 35885
Loc: Great Lakes
Originally Posted By: Indydriver
Id be more concerned about 0W-40 startup in severe cold. What does VW spec?

VW calls for a VW 502.00 spec, which this Castrol 0w-40 meets.
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#4559410 - 10/30/17 04:16 PM Re: 0w-40 year round in Canada? [Re: Indydriver]
mightymousetech Offline


Registered: 04/03/17
Posts: 1444
Loc: Ontario, Canada
Originally Posted By: Indydriver
Id be more concerned about 0W-40 startup in severe cold. What does VW spec?


Castrol 0W40 has a pour point of -60C (-76F) I would say that is pretty severe.

I use it year round in all my cars. And that goes from freezing Quebec winter weather to track use in the summer.


Edited by mightymousetech (10/30/17 04:21 PM)
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#4559411 - 10/30/17 04:18 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
Patman Offline



Registered: 05/27/02
Posts: 20350
Loc: Oakville, Ontario
I've been using 0w40 all year long in my wife's BMW since we got it in 2014, no issues.
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#4559412 - 10/30/17 04:20 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
Indydriver Offline


Registered: 03/20/11
Posts: 2153
Loc: Indiana
M1 0W-40 has a -40C viscosity 63% higher than 0W-30. I would think cold viz would be the critical issue for Canadian winters.
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#4559438 - 10/30/17 05:00 PM Re: 0w-40 year round in Canada? [Re: Indydriver]
OVERKILL Offline


Registered: 04/28/08
Posts: 36464
Loc: Ontario, Canada
Originally Posted By: Indydriver
Id be more concerned about 0W-40 startup in severe cold. What does VW spec?


Why? a 0w-40 is good down to at least -40C, as that's where the MRV test is done.
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#4559439 - 10/30/17 05:02 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
OVERKILL Offline


Registered: 04/28/08
Posts: 36464
Loc: Ontario, Canada
Castrol 5w-40 is less than a spectacular oil, their 0w-30/0w-40 were/are significantly better products. The Mobil product is also an excellent choice.

I'm presently using the Castrol 0w-40 in my Grand Cherokee as it is recommended for SRT applications, unlike Mobil 1 0w-40, otherwise, I'd run that. I ran it in my M5 year round (back when it was LL-01 approved).
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#4559445 - 10/30/17 05:16 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
edyvw Offline


Registered: 03/08/12
Posts: 5038
Loc: Colorado Springs
Originally Posted By: Mr_Accord
I have a Vw golf with the 1.8T that I use as a work vehicle. I do enough mileage that I can change the oil twice a year. I usually time it so its in the springtime and in the fall. During the summer i've been putting 5w-40 Castrol, and in the Winter time Mobil1 0w-40. I'm just wondering if 0w-40 would alright year round during the summer months. I've always looked at 0w-40 for its good cold starting properties but not sure how well it holds up in the summer?

Thanks

Dump that Castrol 5W40 POS.
Use Castrol 0W40 all year around.
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13' BMW X5 35d (Mobil1 5W30 ESP+OEM filter)
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#4559479 - 10/30/17 06:13 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
benjy Offline


Registered: 08/23/10
Posts: 870
Loc: pa
i ran Redline 10-30 year around in PA for 200,000 miles before i traded my 2001 1.8T jetta!!! although its not as cold in PA the true synthetic redline is thickens @ a slower rate in the cold, you know that 40 C is 104 F so your group III fake synthetic mineral oil is a lot less vicious on a cold morning when its new + as it ages the viscosity improvers + pour point depressants go away!! if you do a lot of highway + few shorties a real synthetic may go all year!!

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#4559485 - 10/30/17 06:20 PM Re: 0w-40 year round in Canada? [Re: benjy]
edyvw Offline


Registered: 03/08/12
Posts: 5038
Loc: Colorado Springs
Originally Posted By: benjy
i ran Redline 10-30 year around in PA for 200,000 miles before i traded my 2001 1.8T jetta!!! although its not as cold in PA the true synthetic redline is thickens @ a slower rate in the cold, you know that 40 C is 104 F so your group III fake synthetic mineral oil is a lot less vicious on a cold morning when its new + as it ages the viscosity improvers + pour point depressants go away!! if you do a lot of highway + few shorties a real synthetic may go all year!!

Give me a break man.
I saw Passat's with 1.8T using "fake" synthetics with 350k+. For example Valvoline 5W40 MST has better performance characteristics then new Redline 5W40 Professional series. Ester works only as good as other compounds, and as professional series proves, Redline has a hard time cooking really good oil that can also get approvals.

In Canadian winter I would run Castrol 0W40 (which is by the way, PAO based oil) over any Redline. Final product is much more important then whether oil is Group III, IV or V.
Mobil1 5W30ESP proves that point.
_________________________
13' BMW X5 35d (Mobil1 5W30 ESP+OEM filter)
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#4559568 - 10/30/17 07:11 PM Re: 0w-40 year round in Canada? [Re: Mr_Accord]
Rolla07 Offline


Registered: 11/05/11
Posts: 4740
Loc: MTL, CANADA
0w40 is fine year around.
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2007 Corolla Red Pearl 155k miles
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