<SEC-DOCUMENT>0001674910-21-000012.txt : 20210128
<SEC-HEADER>0001674910-21-000012.hdr.sgml : 20210128
<ACCEPTANCE-DATETIME>20210128164606
ACCESSION NUMBER:		0001674910-21-000012
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210128
FILED AS OF DATE:		20210128
DATE AS OF CHANGE:		20210128

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KIRK STEPHEN F
		CENTRAL INDEX KEY:			0001015037

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37884
		FILM NUMBER:		21565812

	MAIL ADDRESS:	
		STREET 1:		7440 WATERFALL TRAIL
		CITY:			CHAGRIN FALLS
		STATE:			OH
		ZIP:			44022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VALVOLINE INC
		CENTRAL INDEX KEY:			0001674910
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS PRODUCTS OF PETROLEUM &  COAL [2990]
		IRS NUMBER:				300939371
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		100 VALVOLINE WAY
		CITY:			LEXINGTON
		STATE:			KY
		ZIP:			40509
		BUSINESS PHONE:		859-357-2591

	MAIL ADDRESS:	
		STREET 1:		100 VALVOLINE WAY
		CITY:			LEXINGTON
		STATE:			KY
		ZIP:			40509
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_161187035189277.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-01-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001674910</issuerCik>
        <issuerName>VALVOLINE INC</issuerName>
        <issuerTradingSymbol>VVV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001015037</rptOwnerCik>
            <rptOwnerName>KIRK STEPHEN F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>100 VALVOLINE WAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LEXINGTON</rptOwnerCity>
            <rptOwnerState>KY</rptOwnerState>
            <rptOwnerZipCode>40509</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-01-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4586</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4586.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>43393</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each unit represents a right to receive one share of Valvoline common stock.</footnote>
        <footnote id="F2">Represents annual award of units pursuant to Valvoline's 2016 Deferred Compensation Plan for Non-Employee Directors.</footnote>
        <footnote id="F3">The units vest one year after the date of grant. Any vested units will be paid in cash or in shares of common stock at the time specified in the reporting person's distribution election form, or if no election is made, upon separation from service.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Ian C. Lofwall, Attorney-in-Fact</signatureName>
        <signatureDate>2021-01-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
