End Viscosity

[JHogan]

Hey everyone. I have a Chrysler 300S now that requires 5w20, although I'm putting 0w20 in it. Anyway I have a ton of PUUP 5w30 left from when I had my Cruze, and was wondering what I could do to thin it out to make it into the specified grade, or if even I should consider it at all? I have probably 20qts of the stuff but nothing in my fleet requires it anymore. What say you.

 

[mattd]

Run the 5w30 and forget about it.

 

[Duffyjr]

Use it up.

 

[Jackson_Slugger]

Originally Posted by JHogan
Hey everyone. I have a Chrysler 300S now that requires 5w20, although I'm putting 0w20 in it. Anyway I have a ton of PUUP 5w30 left from when I had my Cruze, and was wondering what I could do to thin it out to make it into the specified grade, or if even I should consider it at all? I have probably 20qts of the stuff but nothing in my fleet requires it anymore. What say you.


I'd run the 5W-30 in summer (unless you have a manufacturer warranty)...

 

[oldhp]

What engine???

 

[madeej11]

Run the 5w30 PUP it's great oil. I believe it's on the thin side of a 30. No worries either way.

 

[pitzel]

If you could find some 0W-16, maybe mix it 1:1.

 

[Triple_Se7en]

Originally Posted by mattd
Run the 5w30 and forget about it.

^^^^^^^^^^^^^^^^^^^This ^^^^^^^^^^^^^^^^

 

[MolaKule]

Mix your 5W20 1:1 with the 5W30 to get a high 20 grade-low 30 grade.

I would not mix a 0W16 1:1 because it will bring your viscosity down lower than what you want it to be.

 

[alarmguy]

Originally Posted by mattd
Run the 5w30 and forget about it.


Yup ^^^^

 

[doyall]

What engine?

At 10.3 cSt @ 100°C it is in the low-to-mid range 30 grade but it shouldn't be a problem for either a Pentastar (after mild fuel dilution) or Hemi but if you are queasy go 50/50 or 75(30 grade)/25(20 grade).

 

[DrDanger]

Found this a while ago in a previous thread on here. Believe it is decent.

https://www.widman.biz/English/Calculators/Mixtures.html

 

[walterjay]

I would just use the 5-30 to keep it simple. No worries here. I exclusively use 5-30 in all of my engines that call for 5-20 and have done so for years.

 

[jbutch]

Like others said, the 5w-30 PUP is a thin 30, no worries there unless it could interfere with your warranty. Otherwise you're fine with the 5w-30.

 

[alarmguy]

Originally Posted by walterjay
I would just use the 5-30 to keep it simple. No worries here. I exclusively use 5-30 in all of my engines that call for 5-20 and have done so for years.


^^yup^^ 5/30 for me too