How Dirty Should Oil Be After Change?
11-08-2018, 04:41 PM
#1
Racer
Thread Starter
How Dirty Should Oil Be After Change?
Just had dealer perform oil change at an outrageous price. Drove half a mile and stopped to check to see if dipstick showed correct amount. I was very surprised that the oil looked dirty.
What should the oil look like immediately after a fill and filter change?
Thanks!
What should the oil look like immediately after a fill and filter change?
Thanks!
11-08-2018, 04:50 PM
#3
Race Director
Member Since: Mar 2010
Location: T-Town WA
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2016 C6 of Year Finalist
Just had dealer perform oil change at an outrageous price. Drove half a mile and stopped to check to see if dipstick showed correct amount. I was very surprised that the oil looked dirty. What should the oil look like immediately after a fill and filter change? Thanks!
What's an outrageous price?
11-08-2018, 05:39 PM
#6
Race Director
Does your car have a wet or dry sump?
Oil will appear dirty damn near immediately, it mixes with remnants of old oil and gets thermal cycles up to higher heat that changes its color. You could change you oil, drive for 5 minutes , pull it out, and your see a distinct color difference.
Oil will appear dirty damn near immediately, it mixes with remnants of old oil and gets thermal cycles up to higher heat that changes its color. You could change you oil, drive for 5 minutes , pull it out, and your see a distinct color difference.
11-08-2018, 05:48 PM
#7
Racer
Thread Starter
2010 base convertible - takes 5.7 liters or 6 quarts.
Only drove half mile before checked oil - little time to circulate.
CTS driven 10 miles after oil change was cleaner - looked like I would expect.
Only drove half mile before checked oil - little time to circulate.
CTS driven 10 miles after oil change was cleaner - looked like I would expect.
Last edited by Rich Farr; 11-08-2018 at 05:49 PM.
11-08-2018, 05:57 PM
#8
Race Director
I can say this confidently, you got ripped off price wise.
I suspect you are concerned the oil wasnt changed at all. I cant provide any input on that. Try taking a picture of the oil?
I suspect you are concerned the oil wasnt changed at all. I cant provide any input on that. Try taking a picture of the oil?
11-08-2018, 06:07 PM
#10
Drifting
I really find it hard to believe that a DEALER would charge you for a change and not do it. They made enough on the service, probably cost them maybe $30-$40 so they made their money, why would they take that chance? Unless somebody screwed up there...I don't know!
11-08-2018, 06:25 PM
#12
Melting Slicks
the guys at the local oil change shop charge around $70 IIRC.
Next time keep an eye on the oil before you go in. If it looks the same, you know they never changed it. I wouldn't expect it from a dealer. I don't even expect it from my local oil change shop. The big discount box stores, however, are another matter. I've known too many folks that have left the car while they shopped, got charged for the oil change, and checked the dipstick and saw they didn't change it.
Next time keep an eye on the oil before you go in. If it looks the same, you know they never changed it. I wouldn't expect it from a dealer. I don't even expect it from my local oil change shop. The big discount box stores, however, are another matter. I've known too many folks that have left the car while they shopped, got charged for the oil change, and checked the dipstick and saw they didn't change it.
11-08-2018, 06:33 PM
#14
Race Director
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2021 C6 of the Year Finalist - Modified
Moral of this story ....
If you don't have 100% trust in your car service company, change your own oil and filter !
Disclaimer: . **** ... I'm 70 years old, and I still change my own oil
.
If you don't have 100% trust in your car service company, change your own oil and filter !
Disclaimer: . **** ... I'm 70 years old, and I still change my own oil
.
Last edited by Turbo6TA; 11-08-2018 at 06:52 PM.
11-08-2018, 08:33 PM
#17
Racer
Thread Starter
Oil was definitely changed. Much cleaner - not as clean as I thought it should be before driving. I suspect some of old oil contaminated the new.
Obviously I won't be using this dealer again. Several years ago they were very good in terms of price. Beat all quotes for new Corvette tires and very reasonable oil changes and every fourth change was free. Never thought to ask price because of past experience.
Obviously I won't be using this dealer again. Several years ago they were very good in terms of price. Beat all quotes for new Corvette tires and very reasonable oil changes and every fourth change was free. Never thought to ask price because of past experience.
11-08-2018, 11:08 PM
#18
Le Mans Master
Oil was definitely changed. Much cleaner - not as clean as I thought it should be before driving. I suspect some of old oil contaminated the new.
Obviously I won't be using this dealer again. Several years ago they were very good in terms of price. Beat all quotes for new Corvette tires and very reasonable oil changes and every fourth change was free. Never thought to ask price because of past experience.
Obviously I won't be using this dealer again. Several years ago they were very good in terms of price. Beat all quotes for new Corvette tires and very reasonable oil changes and every fourth change was free. Never thought to ask price because of past experience.
11-08-2018, 11:26 PM
#19
Safety Car
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It would be a lot easier to compare the colour of the oil if you wiped the dipstick on a clean white rag, and then compared it to the same oil straight from the bottle wiped on the same rag.
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