John Deere Riding Mower Manual Stx38

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John Deere STX38 Lawn Tractor Parts online catalog saves you money and has illustrated diagrams. New genuine John Deere STX38 parts at discount prices.

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The John Deere Company offered two models of the STX38 riding lawn mower. The yellow-deck STX38, manufactured from 1988 to 1993, featured a Kohler CV12.5-1215, air-cooled, one-cylinder, gas engine. The black-deck STX38, manufactured from 1994 to 1997, featured a Kohler CV13S air-cooled, one-cylinder, gas engine. Kohler recommends changing the oil after every 100 hours of operation using a high-quality synthetic engine oil with a service class rating of SG, SH, SJ or higher.

Clean It Up


Both STX38 models need 2 quarts of high-quality detergent oil with an API service class rating of SG, SH, SJ or higher and an SAE grade of 10W-30 when temperatures are above 32 degrees Fahrenheit, or a 5W-20- or 5W-30-grade oil when temperatures fall below 32 F. Kohler notes that synthetic engine oil provides for better start-up in extremely cold temperatures because, unlike petroleum-based oil, it does not thicken when the temperature drops. John Deere offers several engine oils for the STX38 mowers, including Turf-Gard, Torq-Gard Supreme, Torq-Gard Supreme Plus 50 and JD Plus-4.

Grease Is the Word

Lubricating the moving parts, including axles and pivot points, reduces wear and keeps everything running smoothly. John Deere recommends using John Deere Multi-Purpose SD Polyurea Grease or John Deere Multi-Purpose HD Lithium Complex Grease, or an all-purpose grease with an NLGI consistency rating of two.

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About the Author

Based in Ohio, Deborah Waltenburg has been writing online since 2004, focusing on personal finance, personal and commercial insurance, travel and tourism, home improvement and gardening. Her work has appeared on numerous blogs, industry websites and media websites, including 'USA Today.'

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John Deere Stx38 Service Manual

Waltenburg, Deborah. 'What Kind of Oil Goes in the Rear of an STX38 John Deere Mower?' Home Guides SF Gate, Accessed 30 August 2019.

John Deere Riding Mower D140

Waltenburg, Deborah. (n.d.). What Kind of Oil Goes in the Rear of an STX38 John Deere Mower? Home Guides SF Gate. Retrieved from

John Deere Riding Mower

Waltenburg, Deborah. 'What Kind of Oil Goes in the Rear of an STX38 John Deere Mower?' accessed August 30, 2019.

John Deere Stx38 Mower Problems

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