Lucas Oil10512 Deep Clean Fuel System Cleaner - 16 Ounce

Work good I usually just put a bottle of it every time I change the oil just for preventative maintenance

Just got three bottles of the Lucas Deep Clean last week and am using it in three different Toyotas. A Venza, a Corolla and a 2004 Tundra. It is working great in all 3 vehicles. I noticed the difference in the Tundra during the first 20 miles or so. The throttle response is better, the idle is smoother, and it is too soon to tell if this product is improving the gas mileage at all. This is the first time I have used the Deep Clean product from Lucas though I have used the Upper Cylinder Lubricant product fuel system treatment. The Deep Clean is much more of a 'standard' cleaner.This cleaner is high in PEA detergent which is the best substance for complete fuel system cleaning, and the Deep Clean seems to have more of it than Techron Concentrate Plus which is another great product. The Lucas Deep Clean is cheaper than the Techron too. Another thing I like is that the Deep Clean works on up to 30 gallons of gasoline, whereas the Techron concentrate only works with up to 20 gallons of gasoline. That extra 10 gallons of cleaning power meas that one bottle treats a full tank of gas in the Tundra that has a 26 gallon fuel tank. The three bottles did not leak which is good. If you compare it to Techron or to Redline SL-1 the Lucas product is quite a bit cheaper and seems more cost effective. I am not knocking the other 2 products they are all good fuel system cleaners.

I used this in my Jag when it didn't pass the smog - plus I changed the $30 oxygen sensor. The NOX was too high - meaning it was running too hot (you have to get hot to create nitrogen oxide.)I read on a lot of Jag forums, that this is a good product - and I noticed right away that my gas mileage jumped way up - to 15-16, from around 12 mpg.I just put a can of this in my old Dodge Dakota truck. I have to drive it down to the smog place - it's a 20 mile drive so it will get good and warm making the trip - I am hoping this will help it pass. It has been passing in past years, but just barely.I take it to a place that does the "sniff" test with the instrument in the exhaust pipe, rather than the places that want me to put on a hugely expensive catalytic converted that would clean up anything that came through the pipe. LOL

Great product

Put about half a bottle in my motorcycle the first tank after it sitting with fuel stabilizer in it. 20-30 minutes of riding I could feel the difference in response and power. I have never had a bad experience with Lucas Oil products, they just work!

Added this to a full tank of gas and drove for 20 minutes before pulling into a smog station for certification. Pass.Do this every for certification prep.

I have been using lucas products for years and have never been disappointed.

Best fuel system cleaner IMHO. Really does clean fuel injectors as you drive. One treated tankful increased my gas mileage. Also, get some electronic parts cleaner and clean your mass airflow sensor on the air intake. You'll be glad you did.