2003 Suzuki LT-Z400 Factory Service Manual, Page 5Get this manual
Use unleaded
91 octane or higher
the Research Method
E GI OIL (For USA)
SUZUKI recommends the use of SUZUKI PERFORMANCE MOTOR or oils that meet API service classifications SF or SG and that have viscosity of SAE If oil with of 10W-40 is not availa select an native to the chart
MUlTIGRAIlE
countries)
Use premium quality 4-stroke motor oil to ensure service life of your vehicleUse only oils that meet API service classifications SF or and that have of 10W-40, If engine oil with rating of SAE is not availselect an alternative to the chart