1/2 qt 5-30 /2qts 10-30/ 2qts 10-40=?

[Bulli]

is it ok to mix all these oils if its all pennzoil.
the 10-30 is a HM oil

 

[Bulli]

what i am asking is what viscosity would the final result be?
i just want to use up what is left.

 

[98dakarM3]

9.44w-34.44

 

[dwendt44]

A thin 10W-35.
The HM oil is on the thick side, so it offsets the 5w30.
That's just my guestimate.

 

[Drivebelt]

You'll end up ~ 12.1 cSt … an oil towards the heavier end of a 30 weight.

~ (2.5/4.5 x 10.53) + (2.0/4.5 x 14.0) = 12.1

 

[CharBaby]

You could mix it all even if it wasn't all Pennzoil.

 

[Doug Hillary]

Hi,
Bulli - This is an imperfect science but this may give you an indication (for the lubricants I used to calculate):

VI = 144
Vis @ 40C = 81.2cSt
Vis @ 100C = 12.1cSt (SAE30)

Drivebelt is correct!

 

[Jaymus]

Like people are saying, that's 'about' the viscosity you would come up with. But, I hope you are just doing this because you have all these oils laying around. It's best to stick with one kind of oil, all the time, imo.

 

[02zx9r]

if have all that as left over, i would run it with no worries

 

[bobfather99]

Mix away, thats what I do with my oddball quarts I have lying around.

 

[sunfire]

Just test it in the wife's car first.

 

[Drew99GT]

Originally Posted By: 98dakarM3
9.44w-34.44


With a "niner" in there!

9.44w-34.44niner

 

[Bulli]

thanks. yah im just using what is left.
i will probably be selling the car after this oil change