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Red Line 60103 SI-1 Fuel System Cleaner - 15 oz.
Price: $8.95
Availability: Usually ships in 24 hours
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Customers Reviews
2010-03-06
Amazing - Never expected results you can actually feel
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!
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2010-01-30
Works well
I have a high mileage vehicle with two catalytic converters. Red Line is the only additive that I've used that has kept the check engine light off for more than a few hundred miles.
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2009-12-23
As good a cleaner as I've tested
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.
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2009-07-05
Best and most cost-effective product of its type
Short version:
Among all fuel system cleaners I'm aware of, Redline SI-1 contains the highest quantity per dollar (based on manufacturer MSDS) of the critical fuel-system-cleaning compounds known as polyether amines (PEA). Primarily for this reason I believe SI-1 to be the best available and most cost-effective fuel system cleaner product at retail pricing. [...].
In my case it has not been necessary to use Redline's recommended quantity of approximately 3 oz per fill-up. The effects of 1 oz per fill-up are indistinguishable in terms of tested results (see my basis for this statement below). This results in an approximate cost of $0.35/tank or less than a tenth of a penny per mile. A full case at this usage rate is enough to treat 180 full tanks of fuel or to last approximately 80,000 miles. (Figures based 15gal/tank, 25-35mpg).
Long version:
As far as I know, every effective fuel system cleaner on the market uses a class of compounds known as polyether amines (PEA), in varying proportions, to effectively clean deposits from fuel system components, and particularly from fuel injectors, which can quickly impact engine efficiency and performance when not operating correctly. My understanding is that these compounds were first developed by Chevron and sold under the Techron name, and have since been made available to other blenders of fuel treatment products. Until recently BG 44K, Chevron Techron Concentrate, Gumout Regane Fuel System Cleaner, Amsoil P.I. Performance Improver Concentrate, and Redline SI-1 (among others) listed polyether amines on their Material Safety Data Sheets (MSDS) in proportions varying from approximately 25% to 50%. Most of these products no longer list PEA on their MSDS, having changed their terminology to disguise the precise nature of their products' constituent components. Whether PEA is still contained in those products is a matter of uncertainty. As of this writing Redline's SI-1 MSDS still specifies that the product contains 30-50% PEA. Consequently it is one of the few remaining fuel system cleaner products that undoubtedly does contain PEA in significant quantity.
I have been able to test the efficacy of fuel system cleaners in one of my own vehicles using a method I stumbled on after having its injectors professionally cleaned while out of the vehicle. The car in question uses a Bosch engine management system that reports fuel injector data to an on-board computer, which then uses that data to calculate and report instantaneous and average mpg to the driver. I noted after the professional cleaning that the accuracy of the reported mpg, when used to measure average mpg over each full tank of fuel, improved suddenly from a prior error of around -3% - -5% (that is, the reported mpg was ~3-5% below the actual mpg, or typically just over 1mpg low) to an error as close to zero as I could measure (that is, usually between -1% and 1%, fluctuating above and below a perfect "match"). This can be explained on the basis that the engine management system will compensate for a dirty injector by holding the injectors open slightly longer during each combustion cycle, in order to admit the proper amount of fuel. The on-board computer interprets that as a slightly higher rate of fuel consumption, reporting a lower-than-actual mpg figure.
After several thousand miles - not long - the perfect mpg accuracy I'd noticed began to deteriorate, likely indicating that the cleaned injectors were beginning to suffer from some sort of renewed impedance to fuel flow. Out of a desire to retain near-perfect injector performance, and also out of curiosity, I started experimenting with various commercially-available fuel system cleaners and keeping records of the results at each fill-up.
Leaving out the long details, I'll simply say here that the results were surprisingly clear and unambiguous. Each time I went several tanks without using a fuel system cleaner (usually as a result of simply forgetting to use it or not taking the trouble), the on-board computer (OBC) accuracy would deteriorate. This would fluctuate from tank to tank, of course, as a result of inevitable measurement errors, but the trend was very clear even over a small number of fill-ups. Returning to the use of a fuel system cleaner (Chevron Techron Concentrate, Gumout Regane or SI-1, all of which at the time did contain PEA), the accuracy would improve again very quickly - within 2-3 fill-ups. I began using the SI-1 exclusively seven months ago based on its apparent cost-effectiveness and since then I have reduced the quantity I use in each tank to the current 1oz per ~15gal fill-up. The results remain unambiguous. If I use this small amount of SI-1 consistently, the accuracy of the on-board computer is excellent, with an average error of below 1%, or a fraction the error rate seen when not using such a product.
Based on the above I feel I can confidently conclude that SI-1 works very well, even at reduced treatment rates, at keeping fuel injectors clean. Fuel system types and injectors will vary, and other parts of the fuel system - for example intake valves and combustion chambers - might benefit from higher treatment rates (or, conceivably, might not benefit at all). Actual engine efficiency will not vary nearly as much as injector cleanliness, since the engine feedback system normally corrects for imperfect injector flow rates. However, as the flow is more greatly impeded, or impeded differentially among the individual injectors, mpg will be affected to some degree. I feel it is well worth the tiny cost to consistently use a small quantity of SI-1. Other benefits, such as to combustion efficiency as a result of combustion chamber cleanliness, to volumetric efficiency as a result of intake valve cleanliness, and to fuel system lubrication, probably exist as well although I can not evaluate them and have not attempted to do so. Other fuel system cleaners may work as effectively, or nearly as effectively, but I do not believe them to be as good in terms of value per dollar spent.
In my experimentation I did try some less expensive fuel system cleaners, those not containing PEA. They appeared to have no effect. I can not categorically state that only PEA-containing fuel system cleaners work, of course, but my observations did match the conventional wisdom on this point. I also experimented with using top-tier fuels only, without any additional fuel system cleaners. The results were the same as when using non-detergent (Costco and others) fuels. I don't doubt that top tier fuels contain small amounts of cleaners and will keep a fuel system functionally and acceptably clean, but the quantities involved are reputed to be tiny and my observations seem to indicate that even a small amount of additional additive is far more effective.
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2008-09-25
I Trust It
I belong to an online forum of Colorado owners (coloradofans.com) and created a poll to see which fuel system cleaner the members liked best. This one did very well, so I tried it and I like the results. I have poured a bottle in the tank prior to every oil change recently.
I also like Techron, because it seems to give me a smoother idle over each tank of gas. Redline seems to bring out the raw power of my engine though.
I am not a mechanic, but it seems to work for me.
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15-, 16- ,17-inch Tires Compared: Who's the Winer?The usage of the tires of different diameter
 Almost all the modern automobiles allow to install the tires of different diameter. At the same time huge low-profile tires are often the privilege of more expensive cars. But is it better to install wide low-profile tires? Or give the preference to narrow high-profile tires?
To get the answers to the questions a tire test has been conducted. The tire model was the same - Bridgestone Turanza ER300, but the size was different - 185/65 R15, 205/55 R16 and 215/45 R17.
Bridgestone Turanza ER300
185/65 R15
Overall mark 8.3 out of 10
Narrow tires cope with aquagliding quite well – at a straight line or in turns they seem to cut through the water. While braking the difference with the wider tires is minimal. In turns narrow tires work worse and on uneven surface you have to brake more frequently. At the same time the manner of driving on narrow tires is more easy-tempered than that on wide’s.
In general the narrow tires got the first place in the test, first of all owing to the resistance to aquaglining.
Bridgestone Turanza ER300
205/55R16V
Overall mark 8.2 out of 10
16-inch tires were the best in respect of noise and softness of movement. The size is optimal as concerns the control over the vehicle. If equipped with 16-inch tires, the car rarely reacts to gauges, moreover it shows the best results in braking on a wet surface. At the same time in maneuverability the gap is not that huge: the adhesion is better, but the car is more difficult to control. On a dry surface the tire win owing to more precise reactions to the control.
205/55R16 tires is a great compromise between comfort and adhesion.
Bridgestone Turanza ER300
215/45R17Z
Overall mark 7.4 out of 10
Wide low-profile tires have advantage on a dry road. The reactions of the car get more precise which stimulates more active driving. On a wet surface the adhesion is obviously better. But while braking 17-inch tires lose to 16-onch. As for the comfort, it could have been worse: wide tires lose to the narrow ones, but the gap is not that huge.
The major drawback of the wide tires is low resistance to aquagliding – that’s why the mark is the lowest.
Of course, on other cars the results of the test could have been different. But the general pattern is likely to remain the same. If you want sport maneuverability – chose wide low-profile tires; adrenalin in turns – narrow ones. The middle size is a compromise for the fans of comfort.
Automotive Parts Articles From Around the WEB - September 15-22, 2007
auto part, performance car part, car body part, auto car part, car accessory, car part, custom car parts, cars, autos, vehicles, tires, Bridgestone |
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