A proposed class action filed in February 2026 accuses Valvoline Inc. of routinely using the wrong engine oil at its Instant Oil Change service centers. The case, Campbell v. Valvoline Inc. (Case No. 1:26-cv-00291), is pending in the U.S. District Court for the Southern District of Indiana and alleges that Valvoline’s quick-lube shops replace customers’ engine oil with products that do not meet the viscosity grade or specifications required by the vehicle manufacturer. The lead plaintiff says this is not an isolated mistake but a nationwide practice tied to gaps in what the service centers actually stock.1ClassAction.org. Campbell v. Valvoline Inc. Class Action Complaint
What Sparked the Lawsuit
Robert Campbell, of Westfield, Indiana, owns a 2025 Kia Sorento with a 2.5-liter turbocharged engine. Kia specifies full synthetic SAE 0W-30 oil meeting API SN Plus/SP or ILSAC GF-6 standards for that engine. On October 8, 2025, Campbell paid $102.99 before taxes and fees for an oil change at a Valvoline Instant Oil Change location in Westfield.2CarComplaints.com. Valvoline Class Action Lawsuit Wrong Oil
He later learned the shop had used Valvoline’s 5W-30 instead of the required 0W-30. When he asked for a refund, the facility offered to redo the service, but the replacement oil also failed to meet Kia’s specifications. Campbell ultimately paid a third-party service provider out of pocket to get the correct oil in his engine.3Carscoops. Valvoline Wrong Oil Kia Lawsuit According to the complaint, when he called Valvoline’s national customer service line, he was told that “Valvoline service centers do not carry the oil with the same specifications required by Kia as no such oil is manufactured by Valvoline.”2CarComplaints.com. Valvoline Class Action Lawsuit Wrong Oil
The Nationwide Claim
The complaint frames Campbell’s experience as an example of a broader pattern. It alleges that Valvoline Instant Oil Change locations across the country regularly install engine oil that doesn’t match manufacturer viscosity requirements, and that the substitution is the predictable result of a gap in the service centers’ stocked products: when they don’t have the specified grade, they use what they have.4ClassAction.org. Campbell v. Valvoline Inc. Complaint
The complaint also alleges that Valvoline’s own website lists 5W-30 as the correct oil for the 2025 Kia Sorento 2.5-liter turbo engine, directly contradicting Kia’s published specifications.2CarComplaints.com. Valvoline Class Action Lawsuit Wrong Oil A Valvoline-branded 0W-30 product does exist in the global products catalog under the SynPower and European Vehicle Full Synthetic lines, though that division was sold to Aramco in 2023. The specific allegation is that the Instant Oil Change centers don’t carry or use 0W-30.5Valvoline Global. Oil Types Weights and Viscosity FAQ
Why the Viscosity Grade Matters
The difference between 0W-30 and 5W-30 looks small on a label but isn’t small in operation. The first number, the “W” rating, describes how the oil flows at cold temperatures. A 0W oil flows more easily at sub-zero temperatures than a 5W oil, which means faster lubrication on cold starts and less wear during those first moments of engine operation.6ClassAction.org. Valvoline Class Action Lawsuit Claims Incorrect Engine Oil Used in Oil Changes
Running an engine on oil outside the manufacturer’s specifications can increase internal friction, accelerate wear, reduce fuel economy, and in serious cases cause engine damage. Turbocharged engines like the one in Campbell’s Sorento run at higher temperatures and tighter tolerances, so the correct grade matters even more. The complaint also raises the concern that using non-specified oil can impair or void factory warranty coverage.2CarComplaints.com. Valvoline Class Action Lawsuit Wrong Oil
The Legal Claims
The complaint asserts four causes of action against Valvoline Inc.:
- Breach of contract, alleging Valvoline agreed to service vehicles in accordance with manufacturer specifications and failed to do so.
- Breach of the implied warranty of fitness for a particular purpose, alleging the oil provided was not suitable for the specific vehicles serviced.
- Violation of the Indiana Deceptive Consumer Sales Act, characterizing Valvoline’s conduct as “incurable deceptive acts” that misrepresented the quality and grade of its services and failed to disclose the use of non-compliant oil.
- Unjust enrichment, pled as an alternative to breach of contract, alleging Valvoline unfairly kept payment for services that fell short of what was promised.4ClassAction.org. Campbell v. Valvoline Inc. Complaint
The Indiana statutory claim is the one with the sharpest teeth. Under the Deceptive Consumer Sales Act, consumers can recover the greater of their actual damages or $500. If a court finds the deceptive act was willful, damages can be trebled or set at $1,000, whichever is greater, and the prevailing party can recover attorney fees.7Justia. Indiana Code Section 24-5-0.5-4 For “incurable” deceptive acts, meaning those committed as part of a scheme with intent to defraud or mislead, no pre-suit notice or opportunity to cure is required before filing.8The Indiana Lawyer. The Sleeping Giant: Indiana’s Deceptive Consumer Sales Act
Who the Proposed Class Would Cover
Campbell is asking the court to certify two groups. The first is a nationwide class of all vehicle owners serviced at Valvoline Instant Oil Change locations whose engine oil was replaced with oil that did not conform to the manufacturer’s specifications. The second is an Indiana subclass of state residents with the same experience.9Yahoo Autos. Valvoline Sued Using Wrong Oil The complaint does not identify a specific time period for class membership. Campbell has requested a jury trial and is seeking declaratory and injunctive relief along with actual, statutory, and treble damages.3Carscoops. Valvoline Wrong Oil Kia Lawsuit
No class has been certified yet. Certification is a separate ruling the court has to make before any nationwide group is legally recognized, and it hasn’t happened here.
Where the Case Stands
The complaint was filed on February 11, 2026. The case is before Chief District Judge James Russell Sweeney II, with Magistrate Judge Tim A. Baker referred. Valvoline filed its answer on May 5, 2026, and a scheduling order followed two days later.10Docket Alarm. Campbell v. Valvoline Inc. Docket As of mid-2026, the available record shows no class certification proceedings, motions to dismiss, or settlement discussions.
One piece of corporate history is worth knowing if you’re trying to follow the pieces. In March 2023, Valvoline Inc. sold its global products business, the division that manufactures motor oil and lubricants, to Aramco for $2.65 billion. After that sale, Valvoline Inc. became a pure-play automotive services company and no longer manufactures the oil used in its own service centers.11Valvoline Inc. Valvoline Inc. Completes Sale of Its Global Products Business The service side and the manufacturing side are now separate companies, which is part of the backdrop to the complaint’s allegations about what the shops stock and why.