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AT T 2D · 09-06-2010

I have an '89 Turbo Trans Am with the 3.8L Turbo, which is a higher horsepower version of the Buick Grand National motor. It is common practice to run an oil additive called ZDD Plus due to some of the additives that have been removed from the modern oils.

Should I be using any additives on my '94 ZR-1?

09-06-2010	#1
AT T 2D Join Date: Jun 2010 Location: Charlotte, NC Posts: 28	Oil additives needed? I have an '89 Turbo Trans Am with the 3.8L Turbo, which is a higher horsepower version of the Buick Grand National motor. It is common practice to run an oil additive called ZDD Plus due to some of the additives that have been removed from the modern oils. Should I be using any additives on my '94 ZR-1?