Been using Power Service, but I hope the product is better than the container. I have read that guys are using a variety of products without noticing much difference. My question is what brand has a container that seals properly?

I use power service some of the time, used john deere winter treatment last winter, but my supply ran out

I used Stanadyne for quite some time with good results. But, since I have to get it at a Bosch shop, I have switched back to Lucas. The Lucas actually looks about as thick as an oil additive. It seems to idle smoother than when I used the Stanadyne and about the same power and mpg increase I had with the Stanadyne.

Thanks guys, but in an old 90 with no door pockets or anywhere to store it, do the caps seal? Anytime the P.S. gets close to the lid, it smells like it's dumped all over. Got a 45 min to an hour commute, and by then the headache is starting real nice.

I've been using Stanadyne for over 50K miles. I use it in just about every tank full of fuel. I get it by the case from Diesel Injection Service in Lubbock, TX. Truck has 111K+ miles on it now and still has original pump and still going strong.<br><br>The way diesel is now with the low sulpher content and such I will keep using Stanadyne untill something else comes along.<br><br>To each his own.<br><br>Jim

I have used Howes &quot;meaner power cleaner&quot; and get it for free..... I still prefer to buy Stanadyne Power Formula and use that.<br>As to bottle sealing... this may sound lame but after dumping in a bit with fuel I squeeze the air out of the bottle, then screw on the cap. That way, when it gets warm in the cab and the bottle tries to 'bloat' it has room expand.<br>See, I too had some leaks until I started doing the squeeze and screw cap method.<br>Pretty simple really,but it works for me..<br><br>bob.