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#4692108 - 03/12/18 06:19 AM "Thinnest" 5W-20 Conventional Oil
RyanGreener Offline


Registered: 02/08/18
Posts: 20
Loc: NJ, USA
Hey everyone. Just looking for a cheapo way to almost match the 0W-20 rating of my tC while using cheapo conventional oil since I want to do 5k OCIs.

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#4692120 - 03/12/18 06:34 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
Char Baby Online   content


Registered: 05/25/05
Posts: 10017
Loc: ROCHESTER, NY
What vehicle do you have?
year, engine, miles on vehicle, climate, driving style etc.
This will help you get started. This information is from the PQIA website and dates back to 2014 but it does have a good amount of 5W20 oil brands grouped together in Some are synthetic so, you'll want to overlook those in particular. The remaining are conventional(dino) oils. You can even click on one brand which will bring it up separately for a better view.

http://www.pqiamerica.com/Feb2014/consolidated5w20ALL.html

Others will chime in for what else to look for in an oil beside how thin it is. Other important factors such as NOACK(volatility) and other additive packages which may be more important to you, your vehicle, your driving style etc.


Edited by Char Baby (03/12/18 06:41 AM)
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#4692126 - 03/12/18 06:42 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
Patman Offline



Registered: 05/27/02
Posts: 20336
Loc: Oakville, Ontario
A cheapo way of matching the 0w20 is to look out for a really good sale on 0w20. Seriously. With some of the sale finds people have posted on here lately you can often find synthetic for less than the regular price of conventional. Then just stock up like crazy.
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2018 Corvette (M1 5w30 ESP & Fram Ultra)
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2010 BMW 328i X-Drive (GC 0w40 & Mann)


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#4692134 - 03/12/18 06:50 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: Patman]
Char Baby Online   content


Registered: 05/25/05
Posts: 10017
Loc: ROCHESTER, NY
Yes, and this too! ^^^
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"Retired"
'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'06 Mazda 3i 2.0L
'15 Nissan Altima 2.5 SV

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#4692149 - 03/12/18 07:05 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
fisher83 Offline


Registered: 01/26/12
Posts: 404
Loc: Omaha, NE USA
Super Tech now makes a 0w20 synthetic. $17 at Wal-Mart for 5 quarts. Pretty close in price to conventional.
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2015 Toyota RAV4 Limited 41k
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#4692174 - 03/12/18 07:37 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
rooflessVW Offline


Registered: 12/24/11
Posts: 4027
Loc: North Carolina
Picking nits.

When my wife had a tC I used 10W-30 GTX every 3k miles. I didn't know any better, and the car didn't care.

I'd run Magnatec 0W-20, which is about $20 for 5 quarts.
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#4692178 - 03/12/18 07:43 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
farrarfan1 Online   content


Registered: 06/24/04
Posts: 1551
Loc: Indiana
Harvest King (Citgo) synthetic 0W20 is $10.99 for a five quart jug at Rural King.
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If laughter is the best medicine, then why do sick people go to doctors instead of comedians?

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#4692183 - 03/12/18 07:55 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
d00df00d Offline


Registered: 10/20/05
Posts: 11204
Loc: PA
Originally Posted By: RyanGreener
Hey everyone. Just looking for a cheapo way to almost match the 0W-20 rating of my tC while using cheapo conventional oil since I want to do 5k OCIs.

0W-20 isn't "thinner" than 5W-20. It's more pumpable at low temps. There's a difference, and it's important.

Also, if your tC requires 0W-20, that doesn't just mean viscosity grade; it also means a certain quality level that is very difficult for a non-synthetic 5W-20 to meet. 0W-20s as a class are just higher quality lubricants than non-synthetic 5W-20s. They have to be, or else they'd cook off too fast and work terribly.

By the same token, any conventional 5W-20 that approaches the cold pumpability of a 0W will be either so thin that it's terrible, or so close to a 0W-20 that it's not cheap. So if you want it to be cheap, you're going for terrible. Doesn't make sense for an engine that specs 0W-20, especially given how cheaply you can get a decent API-certified 0W-20 these days.
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#4692210 - 03/12/18 08:24 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
Artem Offline


Registered: 10/30/10
Posts: 5117
Loc: Florida
5w20 conventional at 5k OCIs should be just fine but as Patman said, there's sales that come up every now and then where you can get Synthetic oil for cheaper then conventional. So why use regular when you can use Synthetic for the same price???

When you see a sale, stock up a few oil changes in advance.
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2014 Mazda 3 Hatch 2.0L & 6spd - Idemitsu 0w20 Synthetic @ $0.75 a quart.

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#4692232 - 03/12/18 08:45 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 11963
Loc: N.H, U.S.A.
Id put 5w30 in that tc. You don't want a 20 in a big 4 banger with small block v8 bore and big block stroke.

You want a good oil not just match a winter grade.

Valvoline 0w20 is very good of all the ow20 I tried.

5-6k on gasohol is about as far as you want to go on a "fake synthetic" where I live.

Remember most American synthetic are NOT REAL SYNTHETIC OIL.


Edited by ARCOgraphite (03/12/18 08:47 AM)
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2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter

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#4692262 - 03/12/18 09:03 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: ARCOgraphite]
TTK Offline


Registered: 10/23/07
Posts: 565
Loc: TN
Okay, Arco. Tell us what is a "real Synthetic". You know Decene is sometimes made from cracked petroleum, right?
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2010 Volvo V70-3.2
Current Fill:Castrol Magnatec 5w-30
2018 Subaru Forester, 0w-20 Subaru oil
2001 Chevrolet Prism:Castrol Magnatec 5w-30


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#4692293 - 03/12/18 09:50 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
dtownfb Offline


Registered: 03/11/09
Posts: 78
Loc: PA
RyanGreener: It seems like cost is a big issue. If you plan to do your own oil change and tire rotation (very important to max life out of your tires), use Walmart SuperTech 0w-20. Use 7500 mile OCI and include tire rotation. Tires will cost most than the oil changes.
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#4692364 - 03/12/18 11:20 AM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
HondaBroMike Offline


Registered: 11/02/17
Posts: 312
Ryan, Ryan ryan, my ryan...Let's see if this fancys our insatiable appetite for fan-freak-tastic oil. I got 19 quart bottles and 4 jugs worth of clearance oil and not just any oil, mind you my ryan, this is the OEM choice for Honda of Canada (still yet) and former OEM for Honda. And still the undisputed OEM for everyone else and by everyone else I mean the likes of Mazda, Subaru, Nissan etc. The quarts bottles were .85 cents each and the jugs 1.55 each. This is 0w-20 oil Ryan Greener...ryanryanryan, we have a lot to learn but just you wait until next christmas and santa can bring you the win of your life for 10s of thousands of miles of love for your car!


Edited by HondaBroMike (03/12/18 11:22 AM)
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#4692480 - 03/12/18 01:42 PM Re: "Thinnest" 5W-20 Conventional Oil [Re: RyanGreener]
901Memphis Offline


Registered: 08/14/10
Posts: 12893
Loc: Northern Kentucky
Use the supertech 0w20, nothing will be cheaper unless you get a clearance score
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2012 Chevy Cruze LT 1.4T - 50k
2002 Buick Century 130k - Built 4T65e(Maxlife) - Edge 0w40 + Fram XG3980

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#4692481 - 03/12/18 01:45 PM Re: "Thinnest" 5W-20 Conventional Oil [Re: 901Memphis]
farrarfan1 Online   content


Registered: 06/24/04
Posts: 1551
Loc: Indiana
Originally Posted By: 901Memphis
Use the supertech 0w20, nothing will be cheaper unless you get a clearance score


The Harvest King synthetic at Rural King is $6 less for the 5 qt jug than the ST.
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