PYB is a LOT quieter than Castrol

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I doubt the 5w20 Edge synthetic was sheared down. It's unlikely that would account for the noise.
 
Originally Posted By: Garak
How, with it being the same viscosity at operating temperature as the 5w30?


In the long run, 10w30 would be quieter because it wouldn't shear as much.
 
This place amazes me somedays. I'll stick with PYB/QS/Conoco Phillips stuff. Least I know that stuff does NOT act like what I just ran two times!
 
Garak is my counterbalance. He keeps me in check; otherwise I'd be running amuck on this board.
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Originally Posted By: Garak
Originally Posted By: Merkava_4
Pennzoil Conventional 5w30 would be even quieter....

Pennzoil Conventional 10w30 gets even quieter than that....

How, with it being the same viscosity at operating temperature as the 5w30?


Cold tick?
 
Originally Posted By: car51
This place amazes me somedays. I'll stick with PYB/QS/Conoco Phillips stuff. Least I know that stuff does NOT act like what I just ran two times!


My general consensus is thicker oil for louder engines and thinner oil for cold tick.
 
Originally Posted By: Merkava_4
That same Focus in Australia would have 5w30 on its oil cap.
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Yep most Ford Focus take 5w30 in Australia, but they should have a picture of a oil can on the fill cap. No numbers.

We prefer the "don't ask, don't tell" rule when it comes to oil. That way we can run GTX 15w40 in everything, or semi-synthetic 10W-40 if we feel our car is special.

No noise or consumption problems when you run a 40 weight.

Merk, give up them light weight ILSAC 10w30 oils and run something with a bit of body behind it.
 
Originally Posted By: Panzerman
I think as well the oil was wore out. I know people on here try to stretch the oil to the limit, why I am not sure. Oil is cheap. But new oil v.s old oil and the new always sounds smoother. I have noticed thicker makes quieter too. I wouldn't give Castrol a bad name over it.


Right.

Gotta compare new oil vs new oil. Old oil vs old oil.

But, yea, new oil always feels good. Just like coming out of a shower and the
towel is nice & warm. Versus a cold towel.
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Originally Posted By: car51
Merk: my ford says to use 5w20; NOT 10w or 5w30. Nice try though hahaha!

My Hyundai has 5w-20 on the fill cap and Hyundai recommends Quaker State oil (in the book).
So I been running Pennzoil Conventional 5w30. 97k+ on the clock and still on original engine.
 
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I am just amazed that people don't realize that with a "good synthetic" in 5,000 highway miles with abode freezing temps j have had a lot of valve train noise with this "oil". Quaker State Conventional, and MC 5w30 never, ever did this either. Let's get real folks
 
Mine was pretty noisy with 10w30 conventional. Pennzoil Pure Plus GTL 0w-20 is pretty quiet in it, as is most other 5 and 0w20 oils I have.

But I just bought a bunch of 5w30 Pennzoil Platinum so guess that is what I will be using next!
 
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