Valvoline VR1 10w30

[OVERKILL]

Ok, the indie performance shop I know, that offers RP as a choice (API, HPS and HMX) has never seen purple dyed engines. Be it recently or in the past. Never.

We do have our buddy Google! LOL! I think it was @RDY4WAR who noted that he's seen it before.

Do the pictures from this thread show up for you?

royal purple =sludge - LS1TECH - Camaro and Firebird Forum Discussion

Forced Induction - royal purple =sludge - I just pulled my oil pan today and I must of had a 1/4in of thick black nasty tar like sludge in the pan the pick up tube had tar like residue on it and the screen was about a 1/4 blocked with sludge. I ran mobil 0ne for the first 10-15k miles and then...

ls1tech.com

If not, here's one of them:

Of course like anything on the internet, I'd take what's presented in that thread with a giant grain of salt.

 

[4WD]

Apparently, yes.

Think they dropped a line or two as well … I used RP HPM 10W30 - NMMA approved 4S marine oil - went away …

 

[weaponoffreedom]

Yes, I'm aware of the colour change behaviour (it would look like normal oil after some miles were put on it), now consider where the dye must have gone, because it had to go somewhere right?

the dye could lose its color with heat i suppose

 

[KEVINK0000]

Old thread revival:

Or stay in the engine as a deposit and assist in varnish formation. I saw the same color change behavior on a brief OCI in a motorcycle. I dumped ($$$) it because I had a hunch. It smelled funny too when hot, and seemed to produce more vapor since the odor was readily apparent coming from the airbox when the bike was shut down. Definitely different from other synthetic oils run in the same bike.