Toyota Genuine Super Long Life Coolant SLLC2 (Pink), 50/50 Pre-Diluted, 1 Gallon

Toyota Genuine SLLC2 is designed for Toyota, Lexus, and Scion vehicles model year 2004 and newer that were originally factory-filled with pink coolant. Earlier Toyota/Lexus/Scion models (pre-2004) used the red SLLC formula (part number 00272-SLLC). The pink color identifies the SLLC2 generation; mixing SLLC and SLLC2 or using a different inhibitor technology in a vehicle designed for SLLC2 can compromise corrosion protection. Check your owner's manual or Toyota's parts portal (autoparts.toyota.com) to confirm which coolant generation your vehicle requires.

Toyota SLLC2 uses a P-OAT (Phosphated Organic Acid Technology) formula · sometimes called HOAT in US market terminology. The SDS §3 ingredient list shows ethylene glycol as the base (87·95%) plus a proprietary inhibitor package described as 'hydrated inorganic acid, organic acid salts.' Industry sources describe this as a phosphate-buffered OAT: silicate-free, nitrite-free, amine-free, borate-free, with phosphate in the buffer system as a pH stabilizer. It is not a pure OAT (no silicate at all), nor a silicate-containing HOAT (no silicate) · P-OAT is the most accurate classification.

Per Toyota's OEM documentation and owner's manuals, the service interval is 150,000 miles or 10 years for the initial factory fill, and 50,000 miles or 5 years for subsequent refills after the first drain. These intervals reflect the P-OAT inhibitor chemistry's extended service life. Independent used-coolant analysis (VOA) data specifically corroborating Toyota SLLC2's inhibitor reserve at the claimed intervals is not publicly available in community sources (BITOG) as of June 2026.

Yes. The SDS confirms this product contains a bittering agent (denatonium benzoate), added to deter incidental ingestion by pets and children. It does not change the H302 (harmful if swallowed, Cat 4) toxicity classification · ethylene glycol coolant is still harmful if swallowed · but it meaningfully reduces the risk of voluntary consumption due to its intensely bitter taste.

The front-of-bottle label uses consumer boilerplate language that is stronger than the SDS classification. The SDS §2.1 assigns H302 (Acute Toxicity Oral, Category 4 · harmful if swallowed), not H300 (fatal if swallowed, Category 1/2). The label wording reflects legal-conservative phrasing common on many EG coolants; the binding GHS classification is in the SDS §2.1. This product does not carry H300.

No. Ethylene glycol coolant · used or fresh · must be collected and brought to a recycling program. Most auto parts stores (AutoZone, O'Reilly Auto Parts, Advance Auto Parts) accept used coolant at no charge. Ground or drain disposal is prohibited under the Clean Water Act in most US jurisdictions. The sweet smell of ethylene glycol also attracts pets and wildlife, increasing the ingestion risk from spills.