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Prices may varyThis product ranks #9 of 23 in Motor Oil.Three above it ↓
Last reviewed May 27, 2026
TL;DR API SP + ILSAC GF-6A certified with GM dexos1 Gen 3 approval · the current spec for most 2020+ gasoline passenger-car engines. The 20,000-mile drain claim is aspirational: community UOA data supports roughly 10,000·15,000 miles on typical daily-driver use. Prop 65 warning applies.
Full synthetic PAO-base oil certified to API SP + ILSAC GF-6A. GM dexos1 Gen 3 approval is confirmed on the front label. BITOG community UOA data shows healthy TBN and low oxidation markers at 10,000·15,000 miles on daily-driver use; the 20,000-mile label interval is achievable under highway-dominant conditions, not typical stop-and-go. It's a genuine category favorite, highly rated on Amazon by a large owner base.
Best for 2020·2026 GM owners (dexos1 Gen 3 required) and owners of 0W-20-spec vehicles who want extended-drain full synthetic with OEM backing. Skip if cost per quart is the priority · conventional oil at your OEM's spec costs far less at 5,000-mile intervals. Confirm the OEM approval list on Mobil's product page before relying on this oil for warranty documentation on other vehicle applications.
The SDS classifies this as not hazardous · no signal word, no H-codes at mixture level. H304 aspiration hazard does not apply (SDS §11 affirmatively confirms no aspiration hazard based on the oil's physical properties). The Prop 65 warning covers the zinc dithiophosphate anti-wear additive, a California-listed reproductive hazard. The SDS on file was last revised in 2015 · 11 years old; the H-codes here reflect that revision and may not capture additive changes since; the current ASIN bottle label shows GF-6A/API SP while mobil.com now lists GF-7A/API SQ for the current production run. Used oil goes to collection · not down the drain or on the ground. AutoZone, O'Reilly, and most municipal hazardous-waste facilities accept used motor oil.
The 20,000-mile claim is backed by Mobil's engine-protection guarantee, but the guarantee covers engine damage, not that every engine under every driving condition will see the oil last 20,000 miles. Community used-oil analysis (UOA) data from BITOG forum threads shows Mobil 1 EP maintaining healthy TBN and low oxidation markers at 10,000·15,000 miles on normal daily-driver use. Severe-duty driving (lots of short trips, towing, extreme temperatures) depletes oil life faster. The 20,000-mile target is achievable under favorable highway-dominant conditions; 10,000·15,000 miles is more typical for average stop-and-go use.
Yes. Mobil 1 Extended Performance 0W-20 carries GM dexos1 Gen 3 approval, visible on the front label. GM dexos1 Gen 3 is the current approval required for 2020+ GM vehicles. Using dexos1 Gen 3-approved oil is required to maintain GM's powertrain warranty for affected model years.
API SP is the current top-tier gasoline engine oil specification as of 2026, succeeding API SN Plus. ILSAC GF-6A adds fuel economy and chain-wear protection on top of API SP · required for most 2020+ gasoline passenger vehicles from Toyota, Honda, Ford, and GM. Using an API SP + ILSAC GF-6A oil ensures deposit control, oxidation stability, and LSPI (low-speed pre-ignition) protection that older specs may not fully provide for turbocharged or GDI engines.
The California Prop 65 warning covers the zinc dithiophosphate anti-wear additive, which includes compounds listed as reproductive hazards under California law. This is the same warning category found on many full synthetic motor oils with similar additive chemistry. The warning is on the bottle label and required by California law for products sold in the state.
Marketing copy from Mobil 1, via Amazon. Not editorial.
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