I bought a 74 - 240D that my father purchased new. When injector cleaners came onto the market, it was recommended to use them. I believe that we used the Chevron Techron. I was in Costco the other day and they had a sale on a Chevron product called "Pro-Guard". It has Techron additive in it. Does anyone use this product and would you recommend using it? If so, how often should one use it?

On another note - the diesel sold today has much less sulfer in it. Does one even need to use injector cleaners anymore?

Please reply and thanks.

Dave