Micro-clean. Clean engine formula helps maximize engine efficiency (Compared to ILSAC and API Industry standards. Go to peakauto.com for warranty details). Maximum engine protection. 5,000 miles guaranteed (Compared to ILSAC and API Industry standards. Go to peakauto.com for warranty details). Maximum engine protection for 5,000 miles - guaranteed (Compared to ILSAC and API Industry standards. Go to peakauto.com for warranty details). Recommended for protection of critical engine components in cars, trucks, and SUVs operating in frequent stop & go operation or towing. Strong & durable oil film protects against wear in stop & go service. API Service SP: SAE 10W-40.