Castrol GTX

[CharBaby]

Originally Posted By: Panzerman
I just changed my oil yesterday and used Castrol gtX 5w20 and it was nice clear yellow. Castrol will range and change from yellow to amber and sometimes just relly dark brown. I have never seen Castrol or any new oil(except Arco Graphite) come out of the bottle Grey. You confirmed that it was grey by putting it in a clear bottle. I would definetely drain it and change it, especially since it isnt your car, but the motherinlaw. Castrol GTX is a first class oil. I think you may be the victim of a scoundral, returning used oil or some foul play. Castrol GTX should not be Grey.


I have an open qt of Castrol GTX 5W20 as I recently changed the oil/filter in my daughters mazda3(4.5qts). It too looks golden-ish!

 

[uart]

Originally Posted By: Hallmark
You never know what's in a container, perhaps including a bottle of GTX.

I once chug-a-lugged about half of a Dos Equis long neck and immediately dropped to my knees almost unconscious. After vomiting & recovering a few minutes later, I had the presence of mind to seal the bottle with tape and take it in to the local beer distributor the next day. He sent the contents to the bottler in Mexico requesting an analysis.

The bottle contained a solvent used to pre-flush bottling lines prior to an occasional detergent & water rinse.


Hmmm looks like I'll need to remember never to buy Mexican beer!

As for the OP. I've definitely noticed some virgin oils more pale and some brands slightly more golden/yellow, but I've never seen gray before. Hopefully it was still nice and translucent and didn't look too much like used oil? Maybe it's just got loads of moly.

 

[number_41]

IMO moly in oils looks bluish, the more moly the bluer. But I wonder if the less moly (but still in there) might be described as greyish?

 

[electrolover]

all the voas i have seen say gtx has no moly. same with pyb and vwb. but other conventional oils do like exxon and mobil

 

[Panzerman]

Gray would be water contamination(that would be my guess) maybe you got some old Katrina oil. Grey is not normal, not even close for any reason.