amsoilman
Staff Alumni
Wayne,
I use Amsoil in my other vehicles as well as my parents vehicles and have never had a problem and some of those vehicles have over 200,000 miles on them. If you can give me your opinion on the synthetic and leaving it in the sump for a long time versus the mileage deal.
Since you have specifficly asked my opiniion, I will cordialy respond.
The Amsoil oils have been formulated for going the extra mile. Since their inception, in 1972, Amsoil has recommended drain intervals of "up to 35,000 miles/one year" intervals. They have milions of miles, and 34 years of records showing their products work, as well as field testing, and "independent" lab testing.
However, they do make certain guidlines to follow. These "recommendations" are for whichever comes first, mileage or time.
Since you are a Diesel Owner, I will give you the specifics on the Diesel oils they have to offer, which would include the HDD (5W-30), AME (15W-04) and ACD (10W-30-30) oils.
DIESEL ENGINE NORMAL SERVICEDefined as-personal transportation vehicles traveling greater than 10 miles at a time and NOT operating under "Severe Service", up to 25,000 miles/one year drain intervals.
DIESEL ENGINE SEVERE SERVICEDefined as-Extensive idleing, daily short trip driving less than 10 miles (16KM), frequent towing, plowingor hauling heavy loads and frequent driving on dusty roads, up to 15,000 miles/one year drin intervals.
In COMMERCIAL USE:NORMAL and SEVERE use, these oils are recommended to be drained at up to 2X OEM recommendations for conventional petrolium oil or one year, whichever comes first.
Now IF* you use a by-pass filter and monitor the oil using "Periodic" Oil ANALYSIS, ANY of these oils are capable of extending the drain intervals.
Wayne
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