“If two or more of those describe your typical driving…”
A driver who had his oil changed at Valvoline says the shop told him to come back in 3,000 miles. Then he asked ChatGPT and the AI told him he could wait 5,000 to 7,500 miles. He turned to the internet to settle the dispute. The answers came back equally divided.
Justin Gladden (@justingladden2), an electrician who posts his opinions and stories from his life on TikTok, says in the clip, “So, just got an oil change at Valvoline, and they suggest me to change it again at 3,000 miles,” he says. “ChatGPT says 5,000 to 7,500 miles. Who should I believe?”
Gladden confirmed in the comments that the oil was synthetic. “Yeah, I normally go 5,000, but most people here are saying 3,000 is correct,” he told one commenter.
What Valvoline Says About Oil Changes
Valvoline’s oil change page says intervals “depend on your vehicle manufacturer’s recommendations and your driving conditions rather than the type of oil alone,” and says staff “will look up your vehicle’s exact manufacturer recommendations.”
The shop and the oil no longer belong to the same company. Valvoline, which runs Valvoline Instant Oil Change, sold its Global Products business to Aramco in 2023 and called itself “a pure-play, automotive services company.”
The Valvoline oil brand’s blog puts it bluntly: “The ‘every 3,000 miles’ rule that lingered from the conventional oil era is obsolete.” It says most full synthetics last “7,500 to 10,000 miles under normal driving and 3,000 to 5,000 miles under severe service,” and tells drivers to “always defer to your vehicle’s owner’s manual and oil-life monitor.”
3,000 vs. 5,000 Miles: What’s The Difference?
Both numbers can be right, depending on how the car is driven. Owner’s manuals list a normal interval and a severe service one, according to the same Valvoline post, and severe service covers drivers for whom most trips are under 10 miles, do a lot of towing, stop-and-go city driving, drive on dusty or unpaved roads, or in extreme heat or cold. “If two or more of those describe your typical driving, follow the severe-service interval, which is typically half of the normal interval,” it says, adding, “Most drivers don’t realize they’re in severe service.”
California’s recycling agency has campaigned against the 3,000 mile oil change interval rule of thumb. Its Check Your Number campaign says “the old standard of 3,000 miles is out of date and no longer applies to most cars,” and that many cars “can be driven up to 5,000, 7,500, 10,000, and even 15,000 miles before needing an oil change.”
On oil type, AAA found in a 2017 study that synthetic oils “performed an average of 47% better than conventional oils” in industry-standard tests, while noting that a manufacturer-approved conventional oil “will not harm a vehicle’s engine.” Its advice assumed drivers were “following a factory-recommended oil change schedule.” The same release cited an AAA survey finding that two-thirds of US drivers don’t trust repair shops, “with most citing concern over the recommendation of unnecessary services.”
“Oil Is Cheap, Engines Aren’t”
Several commenters drew the line at oil type. “If full synthetic, 5K. Not synthetic, 3K,” wrote sam.stone72. rickmakara, who said they had been “in the automotive business for 40 years,” wrote, “Personally in my car I do 5K using synthetic.” Others preferred to err early. “Oil is cheap… engines aren’t,” wrote dl12345bdr, and kickupyourheels3 wrote, “Every 3 months for me regardless. I think synthetic oil is a scam!!”
Commenter nadineschaber bluntly wrote: “Your owner’s manual.” Rattlinram added that “if the vehicle is still under OEM warranty, it’s important to keep maintenance records.”
Dealership advice can run longer still. “Took my Honda Accord to the Honda dealership, they said 10,000 miles,” wrote justnotyourkind. jc44552 had heard the same 3,000-mile advice: “I had a quick oil change place say the same thing…. I just waited til 5,000.”
For drivers who would rather check the oil itself, ottie174 suggested pulling the dipstick at 3,000 miles to see how dark it is.
Valvoline’s blog says oil that is “dark brown or black, with a noticeably thick feel” is one of the signs a change is due, along with an oil-life monitor reading of 10% or less. It also says synthetic oil should be changed “at least once every 12 months,” however few miles the car has done.
Motor1 reached out to Gladden via TikTok direct message. We’ll be sure to update this if he responds.
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