The Techron product just contains an additive that Chevron puts in their gasoline anyway so I don't see how it will damage anything. I used Neutra in my previous car and it seemed to clean out the injectors good. The car ran better. The car I own right now seemed to run better after I tried Regaine in the clear bottle (available at Wal-Mart). Personally myself I would stick to these three products unles I thought the fuel injectors were really dirty-then I would use BG44K one tank of gasoline before an oil change.
One additional nice thing about Neutra is that you can add one oz. per quart of oil into the oil 500 miles before an oil change and it will clean out the engine.
One additional nice thing about Neutra is that you can add one oz. per quart of oil into the oil 500 miles before an oil change and it will clean out the engine.