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I've changed the oil in this '96 Tacoma every 5,000 miles over the 27 years and 415,000 miles I've owned it and it's never had an engine cover off. And guess what, at every oil change the oil was as black or even blacker than shown in the OP's post.
As been stated used oil dark color doesn't necessarily impact engine longevity.
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-
'20-'21-'22-'23-'24
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Originally Posted by Foosh
Yep, unless you plan to go for 100K miles or more in your C8, just change the oil every year or 7500 miles, whichever comes first, and you should be just fine. A lot of folks make things much more complicated than they need to be.
Yep, unless you plan to go for 100K miles or more in your C8, just change the oil every year or 7500 miles, whichever comes first, and you should be just fine. A lot of folks make things much more complicated than they need to be.
I plan to go up to 200K miles on my C8 and will follow the manual which is the same interval as you mentioned above. If you are recommending something different over 100K miles then you are one of the folks making things much more complicated than they need to be!
Maxie, mine looked worse than that at 600 about miles. Best to get it out early, most oil sample labs, will tell you to wait at least one oil change because of all the break in material floating around.
I've got 6k on my Vette and two oil changes. I do oil sample analysis and aside from a heavier metal content expected with the first oil change, all is normal and within expected specs.
No, it ain't. A modern engine with synthetic oil will easily go 100,000 miles if maintained according to the manufacturers specs, unless you're tracking it all the time.
One thing about most Corvette owners being older. They think nothing has changed since the 1950s, when you really did need to change your oil every 3000 miles, and engines were worn out long before 100,000 miles.
In high school my auto mechanics teacher changed his oil every 1,000 miles with Texaco 30 W. I asked him if I could have his old oil, so he would bring me a gallon can about once a month. Great deal for me and my warn out '55 Chevy. With modern oils, 8K to 10K changes are usually acceptable for daily drivers under normal driving conditions.
FWIW -- Eight (8) Corvettes over 31 years (last month) with an accumulation of more than 900,000 miles: --- oil changed and other services performed as per GM/Corvette -- ZERO failures of anything major. Lack 9,000+ miles to make it to 1 x 10 to the 6th
St. Jude Donor '10-'11-'12-'13-'14-'15-'16-'17-'18
Mobil One
Originally Posted by z28lt1
EDIT: RKCRLR posted while I was typing. Same info, sorry for the dupe...
The color of the oil does not have anything to do with if you need a change or not. Oil (really certain additives in the oil) turn black with heat cycles and oxidation.
Unfortunately, oil can also turn black due to contaminants, so by looking at it you have no idea why it is black. I will say Mobil 1 tends to turn black pretty quickly, which indicates nothing.
"I will say Mobil 1 tends to turn black pretty quickly, which indicates nothing."
St. Jude Donor '10-'11-'12-'13-'14-'15-'16-'17-'18
Let's not go there!
Originally Posted by Red Mist Rulz
No, it ain't. A modern engine with synthetic oil will easily go 100,000 miles if maintained according to the manufacturers specs, unless you're tracking it all the time.
One thing about most Corvette owners being older. They think nothing has changed since the 1950s, when you really did need to change your oil every 3000 miles, and engines were worn out long before 100,000 miles.
Many of us resemble that older comment...as Einstein said....“Do not grow old, no matter how long you live".....
Interesting that so many people in general seem to be impressed and surprised that an engine lasts 100,000. No reason why engines and vehicles for that matter shouldn't last far longer than that with a little care.
In 1972 I bought a brand new Datsun B210 as a throw away car meant for daily dirty tasks. I drove it 80,000 miles and never changed the oil once. Sold it with the original break in oil and only topped it off to keep it at the full mark. It never burned oil, never leaked, and the engine ran strong for a POS car.
Have no idea how much farther it went, after my 80,000 miles. This "dumping" of oil too early with plenty detergent properties still there is unfortunate and wasteful. I'm not a greenie, but this is a waste of a precious resource even if it is "cheap insurance" as so often put. With the internet today, if changing oil according to the mfgr's recommendations was too long, there would be 1000's of stories of engines failing at early mileage. It just doesn't happen.
I plan to go up to 200K miles on my C8 and will follow the manual which is the same interval as you mentioned above. If you are recommending something different over 100K miles then you are one of the folks making things much more complicated than they need to be!
I agree. It was not my intent to suggest that changing oil more often than a manufacturer recommends is beneficial at any age.
I just used 100K miles as a figure of speech for keeping a car "forever," in which case, some folks try to be more rigorous with maintenance. In reality, with modern oils and manufacturing techniques, it's likely that an engine that isn't abused can go 2-3X longer than 100K miles by simply following the recommended change interval. I don't think changing it more often does anything other than make some folks feel better, and they are throwing away money and wasting resources for no tangible gain in engine longevity.
I should have worded my post differently after reading it again.
Another option is to just change it when the car tells you and don’t send anything to anyone for anything.
this is me.....my understanding is that cars today have responsibly sophisticated oil change notification metrics, so I just let the computer tell me when the oil needs changing, in all 3 of our cars....
I plan to go up to 200K miles on my C8 and will follow the manual which is the same interval as you mentioned above. If you are recommending something different over 100K miles then you are one of the folks making things much more complicated than they need to be!
my money is on the LT2 making it to 200k. It’s the electronics that wont.
as fast as the electronics are advancing in these cars, everything in the C8 will be obsolete soon.
GM no longer carries some electronics for the C6 such as the E40 ECU. It’s Junkyards…
02-01-2023, 09:37 PM
