Cadillac · XT6 Luxury FWD 1SA LSY M3G MY2025 US · 2025

Cadillac XT6 XT6 Luxury FWD 1SA LSY M3G MY2025 US Engine code

What are the engine code for the Cadillac XT6 XT6 Luxury FWD 1SA LSY M3G MY2025 US?LSY, GM engine RPO (GM TechLink MY2025 chart)

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At a glance

Vehicle
Cadillac XT6 XT6 Luxury FWD 1SA LSY M3G MY2025 US
Engine code
LSY, GM engine RPO (GM TechLink MY2025 chart)
Manufacturer source
General Motors / GM TechLink
Verified

GM engine RPO code printed in the ENGINE / RPO columns of GM TechLink's 2025 engine oil capacities chart (U.S. and Canada), XT6 rows.

Reference details

Check before you buy or service: XT6 Luxury FWD 1SA LSY M3G MY2025 US only. US MY2025 Cadillac XT6 Luxury FWD, equipment group 1SA, model 6NV26; standard LSY/M3G verified in own-model Mechanical column D and MY2025 VIN p.25. No cross-model, optional-engine, year or market inference. Reused R57 original TechLink MY2025 US/Canada row; oil is with-filter quantity, recheck level after filling.

Source

GM TechLink: 2025 Engine Oil Capacities (With Filter), U.S. and Canada, January 2025General Motors / GM TechLink · en
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Last verified by CarFactBook:

Same question · different chassis

Does this answer change on another XT6?

Engine code is published for these other exact codes. Compare the sourced answer and vehicle scope before using a value.

A matching number does not establish that equipment, trim, production date or regional specification is identical.

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The same question, different cars

Manufacturer documentation can give different answers for different engines, configurations and model codes. These are independently sourced entries for the same reference topic, not interchangeable parts or service instructions.

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Engine codeLGX, GM engine RPO (GM TechLink MY2025 chart)Check the exact variant and source limitationsGeneral Motors / GM TechLink · verified 2026-11-05
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Cadillac XT5XT5 Luxury FWD 1SA LSY M3G MY2025 US2025
Engine codeLSY, GM engine RPO (GM TechLink MY2025 chart)Check the exact variant and source limitationsGeneral Motors / GM TechLink · verified 2026-11-05
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Engine codeLEBCheck the exact variant and source limitationsHonda Motor Co. · verified 2026-10-02
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Engine codeP5-VPSCheck the exact variant and source limitationsMazda Motor Corporation · verified 2026-10-02
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What owners usually check next

Engine oil capacity5.3 US qt (5.0 L) with filter (GM TechLink MY2025 chart)Smart-key batteryCR2032 Lithium or equivalent batteryTransmission fluidDEXRON-VI automatic transmission fluidCoolant capacity10.6 L (11.2 US qt), approximately, for the entire cooling systemFuel tank capacity73.4 L (19.4 US gal), approximatelyEngine displacement2.0 L (GM TechLink MY2025 chart)Powertrain designationLSY 2.0L gasoline; M3G nine-speed automatic; FWD

View every owner answer for Cadillac XT6 XT6 Luxury FWD 1SA LSY M3G MY2025 US →