My '06 Civic SI has about 40,000 miles on it. It had been getting around 22 mpg (mostly city driving) but even with long distance freeway driving (around 75mph) I'd only get about 23 mpg. I usually use Chevron or Shell gas. I also have used Techron fuel cleaner in the past with no results.
So I used Red Line SI-1 a few tanks ago, and my gas mileage has increased to about 26 mpg for my last few tanks. Right now I'm at 318 miles on one tank of gas, and i have one bar left on my fuel gauge (it's digital). Prior to the Red Line the best I'd ever gotten was 312 on one tank of gas, and that was after driving the ENTIRE tank on the freeway, and driving 10 miles with no bars left on the fuel gauge. Typically I would get 250-270 miles on one tank.
I'm stoked!
I will admit that using this stuff ain't going to do anything to help you if your injectors aren't clogged... but if you suspect they are, this is the fuel cleaner to get! Red Line 60103 SI-1 Fuel System Cleaner - 15 oz.
I can echo what Glenn said in his review. I started using fi cleaners back in the early 80's. A new Volvo 242 I had purchased new was starting to perform sluggishly. Another owner recommended a fi cleaner which I tried and it worked pretty well. Over the past 28 years I've tried just about everything on the market. Some worked well, others didn't. The Red Line SI-1 works better than the others I've tried. The BG cleaner works well too, but at three times the cost.
Ok so I've tried a handful of fuel system cleaners over the years and the last being Chevron Techron after researching it years ago. The car would typically feel good for that tank, and nothing more but I figured it helped since sometime I would have to put Circle K gas in my car or from stations where you could tell that you were going to get some water with your gas since they were so old.
Anyway on a cross country trip in my friends Volvo with 101k miles in it the throttle started to stick and I realized it was a drive by wire car so it wasn't a cable issue. Plus the car was pinging (my uncar savvy friends response was that sound was the noise the fan makes..) like mad so I inquired to what gas this little turbo was running... Response- Regular! and to makes things worse the last 50k miles the poor thing has been running regular and pinging!!! ahahahahaha So Instant pull into a filling station to fill up the tank with super 91 (in that part of the country). The car is still pinging even after 2 tanks of super, so I remember some motorcycle discussions about Seafoam and I pick a bottle up for some stupid $18 amount in the middle of no where gas station, but the car needs something and the throttle is running (researched this later that the throttle body was dirty). The Seafoam immediately helped but the car still pinged through 4 more tanks of super, and worse the throttle was staying stuck slightly the rest of the trip home which made going down hills interesting to say the least with an automatic (can you smell the brake pads?)
So after a trip to the dealer to inquire about Throttle body cleaning and getting a $140 quote and they won't even pull it off to clean it? I started researching and found this Red Line Product... I've done enough motorcycle road racing to know that certain builders will only use Redline products for their motors and so I know it would be good, but I wasn't expecting to find out that 1oz of this stuff has more than a whole bottle of the Chevron Techron.
So Dump a bottle in the offending Volvo, and also one in my Honda Element with 63k miles and both cars drove like a bat out of hell while the full bottle was in each tank, but I expected that as most cleaners have some octane boosters to make you feel like you got your monies worth.
What I wasn't expecting was that my Exhaust in my Honda was rattling around and the car rattled at stoplights and didn't rev out as smoothly. I just figured it needed plugs and a tune up as I had put 63k miles on it myself... but seriously the exhaust pipe didn't rattle, it revs better than new (probably thanks to the synthetic oil I've been running since after breakin) and I'm getting about 1mpg better and I'm actually putting my food into it more... I'm completely blown away!
The Volvo sticking throttle is cured! and more importantly the engine doesn't ping at all with 91 super like it should! The seafoam might have helped but after seeing the online comparisons of motors fuel systems being torn apart before and after by 'USERS' not "As Seen On TV" infomercials I was confident this wasn't snake oil.
I will be periodically be adding the 1oz a tank as suggested instead of buying whole bottles of other products!
I recently pour a bottle of Lucas fuel injector cleaner on my 1999 toyota tacoma prerunner and the gas mileage decreased over 3mpg and rough idle.
I picked up this Red Line from a local auto parts store. After one tank and my truck is now idle much more stable and mileage increased a lot.
Will stay with Red Line and away from Lucas.
Being a big fan of Red Line products, I was hoping for a big night and day transformation of my 1997 Toyota Camry. Sadly, it just didn't happen. I didn't want to give it 5 stars as I just didn't notice anything, but, I didn't want to give it 1 star as I trust Red Line in their products. My guess for the lack of difference is probably in the fact that I only use name brand gasoline. I figure that the better quality fuels probably have enough detergents in them now a days as to not really require a heavy cleaning. Perhaps if I were more negligent in the upkeep of my car I would have seen a more noticeable bump in performance.
I track my mileage at every fuel up.
FYI I drive a 2007 Mazda3 2.4 Liter engine with about 40,000 miles. It's ranked at 32mpg HWY and 25mpg City.
at two tanks before oil change I got about 29 mpg.
after oil change, air filter change, I had two tanks fuel up, I got about 30mpg.
then I added the Red Line fuel cleaner, plus the Tufoil engine treatment. Here is the result at following fuel ups - 30mpg, 29mpg, 29mpg, 28.5 mpg, 30 mpg.
Not much better at all, not as much as a regular oil and filter change.
In my opinion, save yourself $10 and put that toward a oil change. I rank it so low because it actually advertises better fuel economy. I would not know if it does clean the fuel lines, but I know it certainly didn't help with the MPG.
EDIT:
my mistake, it's 2.3 liter engine.
in response to the first comment:
this is copy and paste from the product page
Product Features
Fuel injector cleaner
Cleans pollution control valve
Reduces octane requirements
Raises fuel economy
Protects the fuel system from rust
it clearly advertises "raises fuel economy"
which it clearly did not do to my car. - Additives - Best Price'
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