ACDelco GM OE dexos1 Full Synthetic Motor Oils are designed with high-quality synthetic base stocks and top-of-the-line additive technology to provide maximum protection for today’s modern engines. They meet common US and European industry standards like ILSAC GF-5 and API SN Service Classification, and are formulated to meet the common warranty requirements for U.S., European, and Japanese cars and light trucks with gasoline engines. ACDelco GM OE dexos1 Full Synthetic 5W-30 Motor Oil is dexos1 approved. Recommended for use in cars and light trucks with gasoline and gasoline turbocharged engines where API SN and all prior specifications are required.
Should I flush my engine before switching from conventional to synthetic or vice versa?
No, it is not necessary to flush your engine when switching between conventional and synthetic motor oils.
Is it true that new engines need break-in periods using conventional motor oil?
No, it is not true that new engines need a break-in period using conventional motor oil. New engines can be run with conventional or synthetic motor oils while still properly breaking in the engine components.
Do I need a special oil filter for a synthetic oil?
No, you do not need to use a special filter for synthetic motor oil. The type of oil filter used isn’t necessary based on the type of oil, but rather on vehicle specifications. Always use the quality of filter that meets the specifications denoted in your owner’s manual.
Does my vehicle require a specific amount of motor oil?
Yes, and your vehicles owner’s manual will contain information containing to the oil specification and capacity for your engine.
Is there a way to tell if my motor oil needs to be changed or is running low?
Yes. If equipped, your vehicle’s oil-life monitoring system will inform you when your motor oil needs to be changed, or, as a minimum, once every year. If your vehicle does not have an oil life monitoring system, change the oil per owner's manual guidelines. Periodically check your vehicle’s motor oil dipstick for your oil levels. For more information regarding vehicle specific oil life and appropriate oil levels, check your vehicles owner’s manual.
Will using synthetic motor oil extend the change period as shown by the oil life monitor?
No, the oil life monitor is not impacted by the type of oil used, it is only influenced by the amount and type of driving. Synthetic oil will, however, improve the protection provided to the engine by the lubricant.
†Retail customers with a U.S. mailing address only. Rebate valid on minimum purchase of four spark plugs and maximum of 16 spark plugs per household. Allow 6 to 8 weeks for delivery of rebate check. See acdelco.com or gmpartsrebates.com for details and rebate form, which must be postmarked by 10/31/21. Offer ends 9/30/21.
†Mail-in rebate available only to Independent Service Centers, Body Shops, or Commercial Fleets with a U.S. mailing address. Limit 15 rebates per business. Not available with some other offers. Government and municipal fleets are excluded. Allow 6 to 8 weeks from promotion end date for delivery of Visa® Prepaid Card. Visa Prepaid Card will be issued in the business name. Visit your my GM Partner Perks dashboard or see gmpartsrebates.com for complete details, eligible parts, and rebate form, which must be postmarked by 7/15/21. Offers end 6/30/21.