11 Sep Updated Las Vegas Taxicab Field Study
This field study has been updated (G3118) to include new transmission results from another Dodge Charger taxi cab that accumulated 12,891 hours (183,705 miles) on a single transmission fluid change. The second edition of the Las Vegas taxicab field study includes the updated transmission results along with the original engine results.
Severe Service Conditions
Taxies are notoriously hard on lubricants due to excessive idling and constant stopping go driving loaded with passengers and cargo. Las Vegas summer temperatures added to the challenge , topping 100°F during this field study .
Given the unusually high amount of idle time , maintenance intervals were determined in hours rather than miles. Signature Series 0W– 20 synthetic motor oil, changed every 900 hours ( approximately 15,000 miles), was used in the Charger’s engine , while the transmission used Signature Series Multi-Vehicle Synthetic Automatic Transmission Fluid , which was not changed during the study.
The vehicles operated throughout Las Vegas up to 24 consecutive hours each day, shutting down only for refueling and personal changes. Average speed was less than 15 mph in each vehicle, illustrating severity of service.
Transmission components prone to the effects of lubricant failure, including the valve body and clutch plates, revealed virtually no sludge and little wear after operating without fluid change for more than three times the original equipment manufacturer ( OEM ) drain interval. Although the Charger carried a recommended transmission fluid change of 60,000 miles in severe service, Signature Series Multi-vehicle Synthetic ATF continued providing superior protection for more than 180,000 miles confirming its ability to provide reserve protection.
The results of the field study offer convincing proof of performance for fleets, contractors, landscapers and other commercial companies who operate work vehicles daily in severe-service conditions. The added protection of Amsoil synthetic lubricants helps protect expensive work vehicles from the negative effects of extreme heat, especially sludge formation, helping to keep them on the job making money.