Redline oil bubbling

We changed from Shell Helix Ultra to Valvoline SynPower 5W-40 because the Shell was foaming. If the Q did not, why not change back? Is Q even available any more? Thought it was replaced by the new Pennzoil Ultra Platinum.

 

My first guess is that the oil has been overfilled. It will foam when over filled.

 

Nothing about how well an oil is lubricating an engine can be concluded by looking at oil color.

Redline has a very good reputation and is widely used.

Bubbling. You are measuring at the disareator, which separates air out of the oil. As long as the level is between max and min when up to operating temp, then you should be good to go. If it is over max and has a ton of bubbles, then you likely have too much oil in the car and it needs to be drained a touch.

 

I get a touch of bubbles on the Ferrari branded Pennzoil 5w40. The oil is not overfilled. What would cause an oil to foam short of being overfilled?

 

Some oils foam just from being pumped through the system at relatively high pressures with parts moving at high rpm. The Pennzoil Ultra Platinum and Quaker State Q are supposed to be the same as the Shell Helix Ultra, just rebranded because Shell is the bottom feeder oil Shell makes in the US and the other two are the premium brands in the US.

My techs and I are happy with the Valvoline and have used it for 5 years, but many pros swear by Redline.

 

I use Castrol. No foam.

 

What on earth does color have to do with anything?

There is a very big difference between bubbles and foam.


Use whatever oil makes you happy but I don't hear anything to be a concern.

Another thing. If you have that little faith in a doctor, plumber or mechanic, you're going to the wrong guy. If you really need to tell the shoe maker how to make shoes you have chosen badly.

 

If you are truly concerned about the oil it is best to save a sample in a clean container and send it to Blackstone Laboratories (or another oil testing facility) or for testing.

 

Exactly^^^^

Anything else is pure speculation and opinion.

 

I use LE oils in most of my cars.... Very good stuff. (no affiliation)

 

oil selection is actually less of a concern than the filter itself. on an exotic, your filter is limited to OEM. on a daily, an OE vs cheap aftermarket filter such as fram makes a huge difference.

use the appropriate oil viscosity and don't cheap out on the filter.