Liqui Moly (2002-20PK) Super Diesel Additive - 300 ml, (Pack of 20)

5-STARSThis is a review on Liqui Moly Super Diesel Additive. This is a great product. I am giving this product a 5-star review. I used two, 300mL bottles mixed with 34 gallons of fuel. No check engine lights came on. Vehicle showed no adverse affects from additive. Regen mileage interval with NO additives was 384 miles after receiving vehicle from repair shop and vehicle working properly.This product increased regen frequency (not good) from previous additive (the longest regen interval so take that with a grain of salt) and decreased frequency (good) from baseline, which suggests that it may have cleaned the DPF to some degree or enhances combustion action to burn cleaner. This product had a decrease in miles between regen intervals than previous additive (Liqui Moly Liqui Moly Diesel Particulate Filter Protector which had performed the best so far), and increased mileage from baseline figure. As far as mileage goes, vehicle gained mpg by 0.2mpg on one run and 2.0mpg on another run on uphill route, but remained about the same on downhill route. There seemed to be an increase of power with less throttle input and more responsiveness. Engine seemed to run smoother and quieter than baseline. I did not get any engine error codes while using this product. Liqui Moly Super Diesel Additive seems to burn very clean with less soot buildup. Regen cycle mileage dropped significantly from 30 miles average to 24 miles.Mileage between regens increased from 384 miles (baseline) to 533 miles (+149 mile increase)(good).The product that I used previously was Liqui Moly Diesel Particulate Filter Protector.Liqui Moly Super Diesel Additive decreased interval miles from previous additive(against best additive so far), 625 miles, to 533 miles (-92 miles)Price would add up up as an everyday solution, so not the best choice for everyday use. For everyday use, I would pick Archoil AR6500 at the standard/lower dose for an economical and everyday use. My choices may change as I test more products.When using any DPF cleaner or additive, I would try to incorporate a regen cycle during use and go on longer drives on highway or freeway to increase the EGTs to burn off the soot.Driving Notes:24 miles driven during regeneration cyclesSoot down to 6 gramsEGTs = 545F temperature, normal highway drivingEGTs = 703F temperature during regeneration cycleInjection quantity at idle at baseline=9mmInjection quantity at idle after Liqui Moly Super Diesel Additive=7mm#1 #2 #3 #4 #5 #6 #7 #8Injector balance at baseline: -0.5, 0.1, -0.2, 0.9, -0.6, -0.1, 0.0, 0.4Injector balance after additive: -0.6, 0.0, -0.1, 0.3, -0.3, 0.4, -0.1, 0.3Less fuel being used at idle.Small boost in mileage from baseline on uphill route:Decrease in regeneration intervals:From baseline: longer distance between intervals +149 miles (good)From previous additive (Liqui Moly Diesel Particulate Filter Protector):decrease in distance between intervals -92 milesInjector balance seemed to improve slightly.My review is based on product efficiency, any damages to vehicle, check engine lights turning on or off, ability to clear engine codes (if my vehicle has any check engine lights), increase or decrease in mileage, and increase or decrease in regeneration mileage intervals. I will not use price as a factor. You will have determine if product is worth the cost. These products may or may not save you costly repairs or replacement. I cannot determine if these products can or will damage your vehicle.My vehicle has no check engine light or error codes. My vehicle is in good working order with no current issues during this review. My vehicle has over 200,000 miles. This is a stock vehicle, with a stock (OEM) factory tune installed. Just prior to this test, my truck was not performing a regen cycle. Repairs were done which included a new 9th injector, new DPF pressure monitor. The pressure monitor measures pressure before and after the DPF filter. The difference in pressure allow computer to estimate how much soot has accumulated in the DPF filter. A force regen was also performed on my vehicle and a passive regen performed before I received my vehicle from repair shop. Vehicle is performing as it should.Test drive is relatively the same and consistent. 49.5 miles one way, with a drive time of about 56 minutes. There is a gradual 1129 foot elevation gain one way and 1129 elevation loss the opposite way. There is some surface street driving, some freeway driving, and most of drive is highway.Hope this review helps. I will be writing more reviews on other diesel additives. I have some data from other additives for comparison listed below. Most products seemed to help and a couple seemed to worsened DPF performance during testing.You should not compare the towing data for comparison. I have just added it to show that towing will change data. Towing will increase exhaust gas temperatures and should make the DPF more effective. My regen mileage intervals increased, decreasing regen frequency, while towing.There are many factors that affect the DPF performance. The factors that I noticed (on my vehicle) are outside temperature, humidity, vehicle speed or stop and go traffic(big factor), and EGTs. Lower temperatures decreased DPF performance. Higher humidity decreased DPF performance. Higher outside temperatures and lower humidity seem to increase DPF performance. Higher EGTs such as towing increased DPF performance. Longer driving distance seems helps the DPF filter as optimal temperatures are reached. It seems like soot accumulates faster when the engine and DPF filter are not warm/hot enough, and faster within the first 10-15 miles of travel. If you are only making short trips then the DPF will fill up faster and regens will be more frequent.Regeneration Interval Mileage Comparison of Different Additives:baseline (no additive), 384 miles between regeneration intervalsArchoil AR6200 Fuel Treatment, 391 miles between regeneration intervals,+7 mile increase from baseline, +7 mile increase from previous additive(none, baseline)Wynn’s DPF Regenerator, 462miles between regeneration intervals, +78 mile increase from baseline, +71 mile increase from previous additiveSeafoam (high dose), 504 miles between regeneration intervals, +120 mile increase from baseline, +42 mile increase from previous additiveNitrox Clean Cat Diesel, 324 miles between regeneration intervals, -60 mile decrease from baseline, -180 mile decrease from previous additiveArchoil AR6500 pulling trailer in hot weather (not same comparison) , 1075 miles between regeneration intervals, +691 mile increase from baseline, +751 mile increase from previous additiveNitrox Clean Cat Diesel 2nd try, 402 miles between regeneration intervals, +18 mile increase from baseline, +78 mile increase from previous additive(Nitrox Clean Cat Diesel)Liqui Moly Diesel Purge, 265 miles between regeneration intervals, -119 mile decrease from baseline, -137 mile decrease from previous additiveWynn’s Turbo Cleaner, 298 miles between regeneration intervals, -86 mile decrease from baseline, +33 mile increase from previous additiveRislone Hy-Per Diesel, 323 miles between regeneration intervals, -61 mile decrease from baseline, +25 mile increase from previous additiveRislone DPF Clean, 323 miles between regeneration intervals, -61 mile decrease from baseline, 0 mile difference from previous additiveArchoil AR6500 pulling trailer in hot weather one way, cooler temps coming back(2nd trip, different route) (not same comparison), 680 miles between regeneration intervals, +296 mile increase from baseline, +357 mile increase from previous additiveCataclean, 414 miles between regeneration interval, +30 increase from baseline, +26 mile increase from previous additiveArchoil AR6500 Diesel Treatment, 564 miles between regeneration interval, +180 mile increase from baseline, +150 mile increase from previous additiveArchoil AR6400-D Diesel Fuel System Cleaner, 462 miles between regeneration interval, +78 mile increase from baseline, -102 mile decrease from previous additive Archoil AR6500.Liqui Moly Pro-Line Diesel Cleaner, 444 miles between regeneration interval, +60 mile increase from baseline, -18 mile decrease from previous additive Archoil AR6400-DLiqui Moly Diesel Particulate Filter Protector, 625 miles between regeneration interval, +241 mile increase from baseline, +181 increase from previous additive Liqui Moly Pro-Line Diesel CleanerLiqui Moly Super Diesel Additive, 533 miles between regeneration interval, +149 mile increase from baseline, -92 mile decrease from previous additive Liqui Moly Diesel Particulate Filter ProtectorDura Lube Severe Catalytic and Exhaust Treatment, 282 miles between regeneration interval, -102 mile decrease from baseline, -251 mile decrease from previous additive Liqui Moly Super Diesel AdditiveAC Delco Fuel System Treatment Plus-Diesel, 425 miles between regeneration interval, +41 mile increase from baseline, +143 mile increase from previous additive Dura Lube Severe Catalytic and Exhaust TreatmentDura Lube Diesel DPF and Catalytic Treatment, 360 miles between regeneration interval, -24 mile decrease from baseline, -65 mile decrease from previous additive AC Delco Fuel System Treatment Plus-DieselStar Review Legend1 star: Made check engine light turn on or trigger error code(s)2 star: Causes no check engine warnings and no engine error codes. Mileage worsened or DPF regeneration intervals decreased in mileage. DPF regeneration process worsened.3 star: gained less than 50 miles in regen mileage interval (from baseline or previous additive), or slight increase in mpg.4 star: gained more than 50, but less than 100 miles in regen mileage interval (from baseline or previous additive), or +2 mpg increase5 star: gained more than 100 miles in regen mileage interval (from baseline or previous additive), or +3 mpg increase.

An absolute MUST for any diesel owner, unless you have a powerstroke. Then you need ArchOil. I have a 95 mercedes benz and use this stuff with every tank of diesel. It cuts soot to basically zero, keeps my pump, injectors, and valves nice and happy, and the price they have on here for the case is unbeatable.Older diesels, especially european ones, are not designed for the ULSD that is sold in the US. the sulfur was the lubricating compound in the fuel, and the newer stuff is harder on injection pumps and injectors, as well as valves, as it does not lubricate like the older diesel.With the LM SDA, the engine runs smoother, quieter, and gives me about 33mpg on my frequent trips to Los angeles and back. In town, 29 or so. It has the added benefit of keeping the coking down, which is a huge problem in older, mechanical indirect injection diesels.Buy it, use it, love it. Then laugh at everyone with a car payment and a hybrid.

I use this product on my Audi TDIHave been good and no issues so far and I have been told with a mechanic friend of mine to use this product at least every 1000 miles to prevent sludge in the tank and keeps the injectors cleanSo far so good

I trust in liqui moly additives on all my work trucks and rely on them to keep everything running smooth. These are especially important to keep the diesel system running smoothly.

This item does not have packaging. It arrived dented, but still usable.

Great delivery

My Mercedes diesel

Gives my 2024 Diesel Nissan Frontier a smoother acceleration.