Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1998LUMINA V6-3.8L VIN KREPAIR AND DIAGNOSISSPECIFICATIONSFLUID TYPE SPECIFICATIONSENGINE OIL
1998 Chevrolet Lumina V6-3.8L VIN K
Engine Oil
1998 Chevrolet Lumina V6-3.8L VIN KSECTION Engine Oil
ENGINE OIL VISCOSITY
All Temperatures SAE 5W-30 (Preferred)
Above 0°F (-18°C) SAE 10W-30
Using oils of any viscosity other than those viscosity's recommended could result in engine damage. When choosing an oil, consider the range of temperatures the vehicle will be operated in before the next oil change. Then, select the recommended oil viscosity.
The recommended oil viscosity for all vehicles when the temperature is above -18° C (0° F) is SAE 1OW-30.
Engine oil viscosity (thickness) has an effect on the fuel economy and the cold-weather operation (starting and oil flow). Lower viscosity engine oils can provide better fuel economy and cold-weather performance. However, higher temperature weather condition require higher viscosity engine oils for satisfactory lubrication. When the temperature will be very cold and never above 16° C (60° F), SAE 5W-30 should be used in all models.
In areas of the world other than North America, it may be difficult to find oils that display the API STARBURST symbol and that are labeled as meeting the GM4718M Specification.
If you cannot find API STARBURST displaying oils identified as meeting the GM4718M requirements, look for oils that meet the API Service SJ and ACEA A3-96 requirements.
The recommended SAE engine oil viscosity is 5W-30, however, additional engine oil viscosities meeting the API Service SJ and ACEA A3-96 requirements may be used in accordance with the temperature ranges as shown in figure 3.
NOTE: SAE 20W-50 or oils of other viscosity rating or quality designations are NOT recommended for use in any vehicles at any time.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.