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Re: Using 0w16 to 'thin down' oil viscosity [Re: pbm] #5385022 03/24/20 10:59 PM
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FordMan59 Offline
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I agree that it won't hurt anything. I just stated what I did on a previous car and on my current ones. When I drove the '88 Escort I used all different brands from major brand names to store branded oil. I usually buy in bulk (several cases) when I catch good sales. If it came time for an oil change and I had 2 qts. of whatever I'd been using in the past changes I didn't throw it away I'd put those 2 qts. in and 2 qts. of whatever brand I was switching to. As I said in my previous post the Escort went 518K miles without a rebuild but it was using quite a bit of oil for the last 100K miles or so. I suspect the rings were worn out but there was no knocking like the bearings were worn out. Since it was using so much oil when I'd change the oil in my better cars I'd pour the burnt oil back in the bottles, set it in my garage and use it for topping off oil in the '88. I'm sure I did this for at least the last 100-150K miles and didn't see much increase in oil consumption. I'd keep an eye on the oil level and when it got 1/2 qt. low I'd go ahead and top it back off rather than waiting for it get a full qt. low. When I parked it with 518K miles the engine still ran fine, the car just needed so much other work done to it that I have chronic back pain and didn't want to spend the time working on it myself and I wasn't going to pay a mechanic $50-100 hr. to work on a car with a 1/2 million miles. Years ago I had a '76 Chrysler that I used as a work car to drive to and from construction sites. It used/leaked a quart of oil about every 300 miles. I did the same thing with it, using burnt oil for topping off oil. When I got rid of it it hadn't had an oil change in over 30K miles and was still running. I wouldn't recommend doing this with a good car and I don't but with an old beater that has no value it works for me.

Last edited by FordMan59; 03/24/20 11:02 PM.
Re: Using 0w16 to 'thin down' oil viscosity [Re: pbm] #5385184 03/25/20 08:16 AM
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SR5 Offline
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Originally Posted by pbm


PS SR5: I think you mean to use 5w30 in winter and 10w30 in summer....but maybe you mean your winter (which is my summer) and your summer (which is my winter)..


Sorry, you are correct, 5W30 in your winter and 10W30 in your summer.
I’ve been working some very long hours.


---------------------------------------------------------------------------------
Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Using 0w16 to 'thin down' oil viscosity [Re: pbm] #5385193 03/25/20 08:28 AM
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tig1 Offline
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Possibly the real problem may be hoarding oil.

Last edited by tig1; 03/25/20 08:28 AM.

2007 Ford Fusion 258,000 miles
M1 5-20HM
2017 Ford Fusion 91K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

Re: Using 0w16 to 'thin down' oil viscosity [Re: Jimmy_Russells] #5385195 03/25/20 08:30 AM
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ARCOgraphite Offline
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Originally Posted by Jimmy_Russells
Originally Posted by ARCOgraphite
Get a jug of 0w20 or 5W20 and sub in 1 quart per OC. you should be fine.

Problem is many 20 are getting to near 30 grade with D1G2.

Japanese 0W20 are usually real thin, genuine subaru was in the 7's

In the old days we had whale brain oil ATF to add.

That stuff was a super lube.

Poor whales, smarter than us sapiens and ravaged by moronic dopes.


Well that was random LOL


???

Not random at all. Whatever this new "lingo" you kids are speaking.

This is an oil forum, by the way.

You kids need an education.

ATF was animal fatty ester derived. I ran it some of my cars.

Better than REDLINE.


2019 VW Jetta S 6MT OCI#2 7378mi-MOTUL Specific VW508.00+VW Service Filter; '17 Subaru Crosstrek CVT OC#9 70254mi-Rotella
Gas Truck 5W20 + Fram Ultra 7317 Filter
Re: Using 0w16 to 'thin down' oil viscosity [Re: tig1] #5385197 03/25/20 08:32 AM
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SR5 Offline
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Originally Posted by tig1
Possibly the real problem may be hoarding oil.


Yes, I think that could be correct.


---------------------------------------------------------------------------------
Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Using 0w16 to 'thin down' oil viscosity [Re: pbm] #5385198 03/25/20 08:32 AM
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Olas Offline
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Where do you live that has a climate that dictates SAE20? Forget about CAFE and read the SAE Journals - they teach us that viscosity is dictated by climate.

Consider the highest and lowest annual temps you will experience and use that data as the basis of your oil selection.

Re: Using 0w16 to 'thin down' oil viscosity [Re: pbm] #5385202 03/25/20 08:36 AM
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kschachn Offline
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And climate dictates the winter rating, at least for starting purposes. I can buy a 0W-40 all day long if I'm worried about that.


1994 BMW 530i, 252K
1996 Honda Accord, 288K
1999 Toyota Sienna, 434K
2000 Toyota ECHO, 284K
Re: Using 0w16 to 'thin down' oil viscosity [Re: pbm] #5385267 03/25/20 09:57 AM
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ka9mnx Offline
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And climate doesn't dictate [email protected] It used to years ago.


2005 Ranger 3.0 - SuperTech Syn 0w-20/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: Using 0w16 to 'thin down' oil viscosity [Re: ka9mnx] #5385271 03/25/20 10:00 AM
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Olas Offline
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Originally Posted by ka9mnx
And climate doesn't dictate [email protected] It used to years ago.


If climate does not dictate viscosity, would you use 0w8 in the Australian outback?
How would you feel about Penrite 40w70 in the Arctic Circle?

You know as well as anybody on this forum that viscosity reduces as temperature increases, so we have no alternative but to select viscosity based on climate.

Re: Using 0w16 to 'thin down' oil viscosity [Re: pbm] #5385274 03/25/20 10:07 AM
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ka9mnx Offline
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Yes, I would use a 0w-8 in OZ if the engine required it. No on the 70 in the north. That's the problem. People think they need a 40 in their 20 application because they live in the Desert.


2005 Ranger 3.0 - SuperTech Syn 0w-20/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: Using 0w16 to 'thin down' oil viscosity [Re: ka9mnx] #5385368 03/25/20 11:40 AM
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kschachn Offline
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Originally Posted by ka9mnx
And climate doesn't dictate [email protected] It used to years ago.

The difference being that one can damage your engine but the other one will not.


1994 BMW 530i, 252K
1996 Honda Accord, 288K
1999 Toyota Sienna, 434K
2000 Toyota ECHO, 284K
Re: Using 0w16 to 'thin down' oil viscosity [Re: ka9mnx] #5385375 03/25/20 11:52 AM
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Olas Offline
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Originally Posted by ka9mnx
Yes, I would use a 0w-8 in OZ if the engine required it. No on the 70 in the north. That's the problem. People think they need a 40 in their 20 application because they live in the Desert.


I think you're falling into a semantic trap. The engine oil required by the engine is determined by climate because climate dictates viscosity.

Also, the Arctic is a desert and nobody up there thinks 40 is better thn 20, do they?

Re: Using 0w16 to 'thin down' oil viscosity [Re: pbm] #5385417 03/25/20 12:39 PM
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ka9mnx Offline
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The W (Winter) rating is dictated by climate. Once the engine is up to operating temperature, Climate does not dictate viscosity.


2005 Ranger 3.0 - SuperTech Syn 0w-20/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: Using 0w16 to 'thin down' oil viscosity [Re: pbm] #5385457 03/25/20 01:31 PM
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aquariuscsm Offline
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There will probably never be an ic road vehicle engine that will *require* a 0W8 oil. I can only imagine what fuel dilution and extended oci would do to that oil.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum High Mileage 10W30

Re: Using 0w16 to 'thin down' oil viscosity [Re: Olas] #5385468 03/25/20 01:51 PM
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blufeb95 Offline
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Originally Posted by Olas
Originally Posted by ka9mnx
And climate doesn't dictate [email protected] It used to years ago.


If climate does not dictate viscosity, would you use 0w8 in the Australian outback?
How would you feel about Penrite 40w70 in the Arctic Circle?

You know as well as anybody on this forum that viscosity reduces as temperature increases, so we have no alternative but to select viscosity based on climate.

If 0w8 was spec'd by the vehicle I'd be fine with it, no vehicle I know of is spec'd for 40w70 and if it was and you needed it in the arctic you'd probably have an appropriate block heater. The operating temp of the oil should be the same regardless of climate as it is largely dependent on what thermostat is used in the cooling system.

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