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Originally Posted By: Shannow Originally Posted By: merconvvv If i recall correctly 20w50 is tested at minus 15f so whatever proportion i am blending should crank easily for my season under consideration. It's in the Chart OVERKILL posted. It's -15 celsius, NOT Fahrenheit So how well can you...

Haha yes minus 15c.

Garak again you are going on and on about what you wud do in situations v. what average joe or jane will do. You can recommend 0w40 but they have lot of viscosity improvers and noack 8 9 or 10 or not published. Op to me sounded like he was settling on 10w30 but not 100 percent confident. I...

I did say that the winter rating system could be better and leaves much to be desired. I also stated more info should be provided to the consumer

ahh good to have you back kschacn. Have you convinced the oil industry and academia that noack is not important So there wont be any lube related failures

Originally Posted By: Shannow Originally Posted By: Shannow As to who's liable if your mix doesn't play well...nobody but the mixer. U mean joe or jane who had to add oil going cross country in canada winter???

i re read it. So you got oil geniuses testing oil compatibility with 7 reference oils and a light bulb does not go off somewhere to test for ccs and mrv before printing that you can add it to other synthetic and mineral oils. I dont even know what u mean by strawman. English is not my first...

strawman doesn't strengthen the argument...and besides, if you are on a long distance drive with a known oil burner, then you'd be foolish not to take some top-up oil with you. Thats avoiding the question Most people are not like bitogers. Sometimes you find out its an oil burner for the...

Originally Posted By: SilverFusion2010 You're not blending. You're mixing. And ending up with an unknown. There are many fine finished oils. I pick one that meets my needs and stick with it. If I have to top off I have 4qt left in my 2nd 5qt jug to top off with for the entire oci. I am happy...

And i blend pp 10w30 with m1 0w20ep as said earlier.

Originally Posted By: Garak Originally Posted By: merconvvv I am on vacation in my newish G37 driving from florida to california. In texas in a rural gas station 200 miles from nowhere i note i am low 1 to 1.5 quarts of m1 5w20 ep. Gas station only has pp 5w20. So what do you do ? Do you wait...

Originally Posted By: Garak Originally Posted By: merconvvv Garak please read the entire post. I did read the entire post. I'm not talking about vehicles under warranty. My point is there are easier ways to get the winter numbers you want and to hold Noack at a reasonable level, and ensure...

I am on vacation in my newish G37 driving from florida to california. In texas in a rural gas station 200 miles from nowhere i note i am low 1 to 1.5 quarts of m1 5w20 ep. Gas station only has pp 5w20. So what do you do ? Do you wait for AAA to bring you m1 5w20 ep by helicopter? Do you pour in...

Originally Posted By: merconvvv Yes the whole idea is to blend according to meet your personal standard with your money and costs. I wud not do it in a newish car with a warranty. OP already blends 5w and 10w.i think. Garak please read the entire post.

Haha i was being sarcastic because you keep harping that noack is not important. Maybe you just dont get it ! I will blend according to my criteria and not pay mucho $$$$ for oil. Plain and simple. Probably reduce profits for others.

Originally Posted By: kschachn Originally Posted By: merconvvv And now you are cleverly saying mixing 5w pao with 5w conventional can make it fall out the 5w grade. Well so what. It can be just straddling the fence of 5w. Ccs and mrv are not discrete variables. The ccs of the blend could just...

Originally Posted By: merconvvv Originally Posted By: OVERKILL Originally Posted By: merconvvv You cant come up with one ? I would blend qsud 10w30 noack 5.0 with pyb 20w50 noack around 5.0 too. I have just started thinking about this but its doable i think. Clearance qsud is almost free with...

We are talking about quality oils that can be had for 2 dollars a quart. This is what some bitogers do. Blending is done by very few. And i think i will believe pennzoil over you. Lol. You have no proof. Pennzoil in one week does more testing than you can imagine

The word Optimal is being used cleverly. Stick with the W rating criteria. Mix two 5w SN rated oils you still have something that is 5w unless both oils were on the boundary of 5w and 10w. There would be havoc if u mixed 2 5w oils and ended up 15w which is possible in your world where you are...

"Pennzoil Platinum® with PurePlus™ Technology can be mixed with other synthetic and mineral oils and is recommended for use in all vehicle applications under all driving conditions." Overkill and kschachn better inform pennzoil.