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From golden to dark immediately!? #5453285 06/13/20 10:32 PM
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pleopard Offline OP
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Just had my 2019 Corolla Hatchback in for its first oil change. Upon receiving my keys back, I proceeded to open the hood and just do a quick once-over. I pulled the dipstick and immediately noticed something that seemed off. The colour on the stick was still a golden brown. When the oil was new I could barely even see it on the stick. Curiousity and skepticism got the better of me, so I pulled an oil sample as soon as I got the car home. It was very dark!! How can this be after only 22km? It it possible they didn’t even change the oil?

Take a look at the photos. I’ve also provided a new oil sample for comparison. It’s Toyota’s 0W16.

682B54B9-2447-41D2-A135-D6BA06056C08.jpegF810385C-FD71-4799-9127-C8730427C705.jpegA6799E10-C836-4EF8-AF08-112B3C216B60.jpegC4DD2787-1BF8-4A56-B974-0C8E8CEDCDBB.jpeg
Re: From golden to dark immediately!? [Re: pleopard] #5453287 06/13/20 10:34 PM
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aquariuscsm Offline
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Man my car's oil doesn't even look that dark after 3000 miles. I'd be very concerned they didn't change it.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum High Mileage 10W30

Re: From golden to dark immediately!? [Re: aquariuscsm] #5453290 06/13/20 10:37 PM
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pleopard Offline OP
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I’ll be sending the sample in for a UoA. I ran it for 16,000km (10,000 miles) before the first change per Toyota’s recommendation. The engine didn’t burn any oil at all. I can see how some residual oil in the engine might darken the oil, but not this much...

Re: From golden to dark immediately!? [Re: pleopard] #5453319 06/13/20 11:17 PM
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dave1251 Offline
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This is not dirty oil. This is the same color which comes out at the bulk tanks at work.


make the inside of your engine oil cap white.
don't use.
Re: From golden to dark immediately!? [Re: pleopard] #5453322 06/13/20 11:19 PM
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Reddy45 Offline
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top 2 pics looks too dark, bottom 2 pics looks about right for a "dark" new oil

Re: From golden to dark immediately!? [Re: pleopard] #5453334 06/13/20 11:44 PM
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Superflan Offline
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Top 2 pics are used oil that should have been replaced, 2 bottom are virgin oil.

Maybe they didn't change the oil. Maybe they did but I don't think so. Keep us updated


‘01 Peugeot Partner 1.9 D, 15W40 E7, 276000 Km, running straight WVO
Wife's '19 Suzuki Vitara 1.0 Boosterjet (TGDI), 5W40 A3/B4, 31000 Km
Backup ‘01 Toyota RAV4 3-dr 2.0 VVTi, 5W40 A3/B4, 170000 Km
Re: From golden to dark immediately!? [Re: Reddy45] #5453335 06/13/20 11:44 PM
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pleopard Offline OP
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The bottom two pics are brand new Toyota 0W16 oil for reference. The stuff in the first pics are oil that I extracted right after driving home from the dealer after having the oil changed (supposedly).

Re: From golden to dark immediately!? [Re: pleopard] #5453338 06/13/20 11:49 PM
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dwendt44 Offline
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Perhaps they didn't bother wiping off the dip stick.

My 2¢


There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.
Re: From golden to dark immediately!? [Re: dwendt44] #5453340 06/13/20 11:52 PM
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pleopard Offline OP
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Originally Posted by dwendt44
Perhaps they didn't bother wiping off the dip stick.

My 2¢


What does this mean?

Re: From golden to dark immediately!? [Re: pleopard] #5453342 06/14/20 12:06 AM
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TrainingPolicy Offline
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My question is, if you were so suspicious at the dealership why didn't you go back and ask them? Instead of driving it home, taking photos, posting on BITOG and paying for a used oil analysis? I feel like just speaking with a service manager probably could have answered any questions you had. They probably could have even shown you the 'new oil' they put in cars so you could verify the oil color.


2003 Infiniti G35 6MT 105k
2005 Honda Accord 237k
2010 Hyundai Santa Fe 112k
Re: From golden to dark immediately!? [Re: pleopard] #5453343 06/14/20 12:08 AM
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Reddy45 Offline
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The first few oil changes are free right? (not sure if ToyotaCare 2 years is free in Canada as well)

If so, take it back to the dealership and show them and ask them to change the oil again. Oil looks way too dark.

Re: From golden to dark immediately!? [Re: pleopard] #5453347 06/14/20 12:23 AM
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mahanddeem Offline
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looks like old used oil


2009 Nissan Maxima
2011 Nissan Maxima
2004 Honda Odyssey
Re: From golden to dark immediately!? [Re: pleopard] #5453348 06/14/20 12:30 AM
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ChristianBerg Offline
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They didn't change it. Period. Go back to the dealership with the UoA, and if I was you I'd write to Toyota telling your story. This is unacceptable, if you weren't a car guy this engine would probably break down.

Re: From golden to dark immediately!? [Re: pleopard] #5453354 06/14/20 12:47 AM
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sloinker Offline
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Get the UOA. If it is 10k mile old. Hire a lawyer and become part owner of the dealership. Probably settle out of court when you tell them about the full page newspaper advertisement and social media lynching you have planned. Probably worth a new car and some lawyer payoff money. The moral of the story is: Change your own oil and you know it's done right. Free dealer service may not be free at all........


'16 Tiguan TSI Vaico 5W40
'15 VW Golf TDI Red Line 5W30 Euro
'15 VW Golf Sportwagen TDI M1 ESP 5W30
'14 Dodge Grand Caravan 3.6 Valvoline 5W20 Semi Synthetic
'64 Plymouth Fury440 Pending
Re: From golden to dark immediately!? [Re: pleopard] #5453355 06/14/20 12:48 AM
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ZeeOSix Offline
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Dealer oil change ... probably didn't let the old oil drain out well. Did they do the oil change when the engine was completely hot, or did you leave it there and they did the oil change hours later? And as others mentioned, the oil they used could be "dark" to start with. Where did you get the new oil sample from? Did they use bulk oil, or oil from a jug or bottles?

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