Note: Find Gumout products at these and other locations.

TECHNICAL INFORMATION & QUESTIONS:

Shell-Branded Products:
1-800-237-8645, Option 4, then Option 1; shelltechnicalus@shell.com;
(Available Monday - Thursday 7 a.m. – 5 p.m., Friday 8 a.m. – 4 p.m. CT)

Pennzoil, Quaker State, Car Care Products:
1-800-237-8645, Option 4 then Option 2; pqsandcarcaretechnical-us@shell.com;
(Available Monday – Friday 8 a.m. – 5 p.m. CT)