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International Automotive Technicians Network
Re: Mobil 1 ad: 'Don't Change Your Oil!'
Posted to Industry Issues Forum on 8/11/2017 2 Replies


I always found it interesting that Exxon was so late becoming a Tier 1 fuel.

Also many brands that I would have thought were inferior fuels were Tier 1 early on.

Also an oil company like Ashland (Valvoline) would finally step up to being dexos approved when they started sponsoring Chevrolet.

As usual your class opened my eyes to what I thought I knew about oil and coolant many years ago.


Robert Harris
Technician/Technical Information Specialist (Retired)
Robert Harris
Alvarado, Texas, USA

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