United Petroleum Co. has extended the consumer vehicle coverage for users of its Quantum Motor Oil, under its Consumer Engine Guard warranty program. Quantum XS Elite premium synthetic motor oil, formulated with polyalphaolefin and CleanGuard additive technology, now is backed by a 350,000-mile vehicle warranty. The warranty for Quantum X-5 FullSYN, X-75 high-mileage oils and X-75 High-Mileage Oil Boost has been stretched to 250,000 miles.
展开▼
