Compression Ignition Addict
Join Date: Jan 2010
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AMSOIL is compatible with conventional oils, however it will effect the drain interval. If you keep the first change on the conservative side there should be no problems. The synthetic with the Ea filter will allow extended drain intervals.
Do yourself and your wallet a favor and become a preferred customer for a $10.00 investment/six month membership you will purchase at wholesale pricing. You will make you money back and then some with this oil change.
For the gear oil, I agree with Terry. AMSOIL has an excellent vehicle look-up guide on their main web page for all recommended products. If you want a price break down between the two let me know.
1984 F-350 XLT 4x4 4spd. 6.9 (project)
1996 F-250 XLT 4x4 5spd. 7.3
2001 Excursion XLT 4x4 Auto 7.3