If NASCAR is about to enter a new era of cooperation, where competing teams and organizations share much of the same information relating to new electronic fuel injection systems, the drivers have two words to add to the conversation.

Or maybe three words.

Be very careful.

“I’d rather not have that,” said Dale Earnhardt Jr., driver of the No. 88 Chevrolet for Hendrick Motorsports. “It would be a benefit to be able to see all that. But I think it’s a slippery slope.

“With the fuel injection it brings in the ability this year to be able to see data that we’ve never been able to see before. I think we should ease into how we use that data — and how NASCAR allows us to use that data — kind of slowly so as to not upset the culture of the sport, or how things have worked in the past. I think if we take this new door that has been opened to us and abuse it, it might not be good for the sport. I think it’s better for competition for everybody to have a few secrets.”Carl Edwards, driver of the No. 99 Ford for Roush Fenway Racing, said he agrees with Earnhardt