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Engine oil turning RED

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13/02/2023 3:05 pm

Topic starter

Hi Scotty,
I'm from Portugal and I love your videos. Thanks for the very helpful advice.
My car oil is turning red.
It's a 1998 Mazda Demio 1.3L with 230kKm, uses petrol and LPG. I'm the only owner and I'm the one who always changes the oil and filter, I always put synthetic. The difference was that now I used "Castrol magnetec start/stop" and before I used one from GM recommended for Opel. I always change oil and filter at 5kKm, it doesn't use oil but for the first time it turned red. Help

Gouveia

(@gouveia)

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engine oil

6 Answers

13/02/2023 3:14 pm

What is the color of your coolant?

Chuck Tobias

(@chucktobias)

Member Moderator

| 16096 Posts
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coolant in oil color would be "milky" LoL

By MountainManJoe 13/02/2023 3:21 pm

Strawberry milkshake, mmmmmmm... Silly

By Chuck Tobias 13/02/2023 3:22 pm

Thank you, I mean red translucid like transmission fluid

By Gouveia Topic starter 13/02/2023 3:46 pm

Was transmission fluid accidentally put in the engine? It's hard to think of anything that would turn your oil red, I've never heard of anything like that.

By Chuck Tobias 13/02/2023 3:56 pm

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13/02/2023 5:06 pm

Do you have any photos?

MountainManJoe

(@mmj)

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14/02/2023 6:14 pm

That looks exactly like automatic transmission fluid. Are you sure that you are using the correct drain plug? I have never seen that before. If you're sure, then I guess call Castrol and ask if it's normal.

MountainManJoe

(@mmj)

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I did use a thin tube in the oil dip stick to extract this oil... no error this is a manual transmission car. i will put the question to castrol then i reply

By Gouveia Topic starter 14/02/2023 6:57 pm

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13/02/2023 4:53 pm

Topic starter

I change the oil myself, it was a normal amber color, I still have 1/4 in the container. Very strange, I was hoping to get responses like this is a really good oil and it's cleaning the engine. Now I lost hope... something bad is coming!

Gouveia

(@gouveia)

Active Member

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I don't know if it's bad or not. As I said it's the first I've heard of that kind of thing. You might try DuckDuckGo-ing "engine oil turning red" and you'll find stuff like this:

https://getjerry.com/questions/why-is-my-engine-oil-turning-red

https://vehq.com/why-is-my-engine-oil-red/

https://vehiclefreak.com/why-is-my-engine-oil-red-whats-it-mean/

By Chuck Tobias 13/02/2023 4:57 pm

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14/02/2023 4:36 pm

Topic starter

Thank you all. Also didn't mention before, this oil has 5kKm ~3K miles and the car has a manual transmission. I'm sharing some fotos and videos https://drive.google.com/drive/folders/161mgKINjvyqZ-Y-RAPzafqgrQKLceUyR?usp=sharing