Cheap insurance - put in a winterizer AND run your engine for a little bit to get it to cycle through the filters and lines. I use Stanadyne’s blue label additive year round but it also has a winterizer agent in it.
Pros: cheap insurance
Owner reviews for fuel additives
Manufacturers
Any major brand will do - Howe’s, Power Service, Hot Shots … I always used Power Service because it has the Cummins logo on it.
Pros: cheap insurance
Use a fuel additive like Chevron Techron every oil change.
Pros: fuel additive
Vehicle:
Hyundai
Redex Diesel Cleaner is the nuts, get +15mpg on my TDI on a long run compared to standard diesel, well worth it.
Pros: +15mpg on long run
You add a shot every full tank and it turns normal diesel into premium with added cleaners. This means your car is always running additives through it which makes a huge difference compared to the occasional top up of the supermarket stuff. It works out as pennies per tank, much cheaper than premium diesel and you’ll see all the benefits including better economy.
Pros: better economy, added cleaners
I used an all-rounder one, like from Wynn's. I was positive this was snake oil but I was in my Vito, about 200 miles away from home in limp mode. Error codes for turbo. I chucked this in since I was stuck, got some smoke pooting out the exhaust and then boom - limp mode cleared.
Pros: limp mode cleared
Cons: smoke out the exhaust
I use and recommend Wynns Formula Gold, available from Halfords, Amazon and many other outlets. I have used it every 6th fill up for the last 4yrs in my now 13yr old BMW 318d. Great fuel economy and acceleration sails through the MOT emissions test, a bit more expensive than some of the other treatments on the market but I find it pays for itself with the increased fuel economy.
Pros: great fuel economy
Cons: bit more expensive
Vehicle:
BMW
Driving from the Alabama - Tennessee line to the gulf coast, most downhill I mind you - predominantly interstate, I have never gotten more than 23. This was with little to no load, Nitrogen tires, Fresh air filter & oil, premium fuel, & Lucas fuel tx additive.
Pros: premium fuel, fresh air filter
Cons: never gotten more than 23
Vehicle:
Toyota
I have been using Mannol's benzene ester based additive for the last 200kms of driving. I dont expect much from this, but what I did notice is that the engine has got a tad bit smooth, just a lil bit. Mileage remains more or less the same.
Pros: engine got tad smooth
Cons: mileage remains same
Vehicle:
Skoda
Mileage: 200 km
I bought a bottle a few years back. It tasted like STP. Would not recommend.
Cons: tasted like STP
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Owner reviews for fuel additives
As of March 2026, PartReview has 78 reviews across 17 manufacturers for fuel additives. 9 of them have enough reviews to participate in the ranking of this part.
Popular manufacturers of fuel additives
The most popular manufacturers of fuel additives on PartReview include:
- BG - 10 reviews. PR Score: 100, average rating: 4.6.
- Lucas - 8 reviews. PR Score: not available yet, average rating: 4.2.
- Chevron - 8 reviews. PR Score: not available yet, average rating: 4.3.
- REDEX - 8 reviews. PR Score: not available yet, average rating: 3.5.
- STANADYNE - 6 reviews. PR Score: not available yet, average rating: 4.5.
Most opinions about performance and characteristics of fuel additives are collected on these pages.
Top manufacturers of fuel additives
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Comparisons of fuel additives manufacturers
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