Quick freezer test with M1 and Chevron Supreme

[Alan]

Put one qt of M1 5W30,Chevron supreme 10W30 and Chevron Supreme 10W40 in the freezer for 2 hours(they have been sitting in my 30.0f trunk prior).Down to zero and below in the freezer.


M1 didn't really change much,still flowed really well,no surprise here.

CS 10W30 flowed freely also,not too much different from room temp.

CS 10W40 flowed pretty identical to the 10W30 CS,surprising me.

Anyways I am trying these quick experiments because I am considering running a Chevron Supreme blend with 3qts 10W30,2qts 10W40 to thicken up the top end a tad.I am looking to try this blend in my 02 Sienna V6 sludge mill.

It looks like this engine likes a thick 30W weight oil as shown by some of the UOA's i've seen.The Redline and GC OCI were paticulary good.

 

[Darryl]

You could use 10w-30 Chevron Supreme High Milege instead of your mix. The High Mileage 10w-30 is thicker all the way around than Chevron Supreme 10w-30, just a thought.

Darryl

 

[Alan]

I've never seen CS HM 10W30 anywhere.It's hard enough just to find Chevron 10W30 here in the DC metro area,seems only to be avalible at Walmart and thats a crapshoot.

 

[williar]

I think you need to leave the oils in the icebox overnight to get them down to zero F. Let us know what you find out in the morning.

 

[Jay]

What williar said.

 

[Jelly]

Here a while back, I put 8oz. of Delo 400 15w-40 in the freezer (the typical household fridge/freezer combo) and cranked it up to its maximum setting.

Let it sit overnight (from 7pm to 7am).

I was amazed at how fluid the oil still was...obviously, much thicker than when it went in, and while there are many better choices for cold weather, I wouldn't hesistate to run it in an engine if I had too...

 

[boxcartommie22]

friend at jiffy lube put castrol, valvoline, mobil 1, delvac 1..all of these were synthetic oils...he put these oils in dry ice -40 for 3 days...the castrol, valvoline, pennzoil were like a rock!!!!
the delvac 1, and mobil 1 pured like it was warm out!!!

 

[heyjay]

quote:

---

Originally posted by boxcartommie22:
friend at jiffy lube put castrol, valvoline, mobil 1, delvac 1..all of these were synthetic oils...he put these oils in dry ice -40 for 3 days...the castrol, valvoline, pennzoil were like a rock!!!!
the delvac 1, and mobil 1 pured like it was warm out!!!

---

A household freezer is only good to 0 F. Almost every oil is good to that temp, unless you're running a straight SAE 40 or SAE 50 in an older Detroit Diesel two-banger.

The dry ice test is a much better example of extreme cold flow. I've been "lucky" this winter and we've dipped to -43 F a couple of times.

I can state quite positively at that temp that a regular 5W-30 in the shed where I keep my snowblower is frozen hard as a brick. Same with an old bottle of 15W-40. You'd need a hammer and chisle to get it out of the bottle.

I run Esso XD-3 0W-30 in the snowblower and it still seems quite fluid at -43. Mobil 1 0W-30 seems slightly more fluid, though it's hard to tell with the "shake the bottle and hear it slosh" test.

Fortunately we're warming up. Today it was +15 F / -10 C.

Jerry

 

[Alan]

Hi Willar,I see your point but this stuff was already around 30 F when I put it in the freezer.With 2 hours in the freezer the oil was cold!

Where I live(DC Metro area)it never really drops below zero.Low teens is about the coldest in the winter with single digit days once in a while.

 

[TC]

I've read freezer tests like this before in these boards, and they make for cool, fun experimentation. But I can't help wonder why folks just don't defer to spec sheets and the standardized industry test, ASTM D-97 Pour Point.

"After preliminary heating, the petroleum sample is cooled at a specified rate and examined at intervals of 3ºC on an incline for flow characteristics. The lowest temperature at which movement of the specimen is observed is recorded as the Pour Point."

[ February 13, 2004, 07:07 PM: Message edited by: TC ]

 

[Jelly]

We do defer to the pour point specs, but at least for me, it was fun to see just how "liquid" a 15w-40 would remain at 0F.