The only lubricants and filters that Ultra Limousine will ever use are those made by Amsoil. All of the statistics and independent tests show the superiority of the Amsoil oils and our limos (past and present) are a testimony to the claims.
We run once a year or 25,000 mile intervals for oil changes (oil and filter), which means we don't produce 48 quarts of oil and 8 used filters each year. We also save on the down time that would be necessary to schedule the extra changes.
We have 250,000 miles on our oldest Town Car and it still runs like new.
Our 1993 Town Car was sold to a pharmacist in 2000 and it has over 650,000 miles on the original engine and transmission.
Another great feature is that the reduced friction and heat translate into improved gas mileage. That means saving hundreds of dollars every year on gas and diesel alone.
We log every fill up and run new cars on the factory oil for a few weeks to get a baseline. Every one of the cars we hve owned has shown a 5 - 12% improvement in mpg after switching to Amsoil. Our big RV diesel went from 7 mpg to 11 mpg.
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