Oh No! Not another Synth vs. Dino thread!

Interested to see if there is any correlation to the "milky oil" phenomenon and use of conventional vs. synthetic oil, or perhaps a mixing/compatibility issue.

Please vote if you have experienced this with your RX-8 (milky oil or foam on the dipstick, filler cap, etc)

If more than 1 applies, check the most recent.

No place to vote for Conventional (no change yet) in the poll? I have milky factory oil. I'm sure that geographic location (ambient temperature) is a factor too - DC Metro Area
for me.

rx8cited

PS: I did not vote ...... until factory fill was added to the ballot :).

"factory fill" is on the ballot :)

More importantly.... is this normal? is it bad?

I'm wondering if "milky oil" is a phenomenon happening ONLY within the dipstick tube. Heating / cooling of the tube causing a mix of condensation and oil . . causing the cream colored 'globby' stuff.

Which is to say . . "milky oil" is NOT a problem anywhere else in the engine.

While checking my oil level this morning, I was very surprised at the amount of milky stuff over the length of the dipstick, and initially very concerned about a glob of the stuff on the bent end of the dipstick. After thinking about it, I decided the stuff on the end of the dipstick was possibly 'scraped off' the inside wall of the dipstick tube when I removed the dipstick.