Thoughts on fuel additives?

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H4wkeye
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Thoughts on fuel additives?

Post by H4wkeye »

Was recently reading up online about various fuel additives and was wondering has anyone used them here? Particularly for diesel. Was looking at some of the Wynns line-up.

Do they help? Should they be used occasionally?
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GiveMeABreak
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Re: Thoughts on fuel additives?

Post by GiveMeABreak »

You shouldn't need them if you opt to fill up with a tank of premium diesel every month or so as the premium fuels contain additional additives and cleaners to keep the system in good condition.

Otherwise use a decent safe additive for HDIs with DPF systems and maybe treat a tankful every 3 months or so. I think the STP and Wynnes have several treatments covered in one bottle.

I prefer to fill up a tankful of premium diesel every month or 2 (depending on your mileage and how many times you fill up a month) and don't bother with additives.
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H4wkeye
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Re: Thoughts on fuel additives?

Post by H4wkeye »

Thanks Marc. Normally one full tank will last me a month. Sometimes 1.5. I was looking at this one from Wynns:

https://www.wynns.eu/product/diesel-tot ... treatment/
Gibbo2286
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Re: Thoughts on fuel additives?

Post by Gibbo2286 »

We used to joke in the trade about them, they're rarely worth the price, Holts used to be the main lot and one of the jokes was "You need a can of Holt's liquid engine."
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GiveMeABreak
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Re: Thoughts on fuel additives?

Post by GiveMeABreak »

I did use one a year back when the C3 was waiting a week for a sale. It wasn't being used at the time and I took it for a little run and had a few splutters / hesitation, so got back and shoved some STP diesel fuel treatment in and went for a boot up the hill when it started on a massive splutter, so I floored it and whatever it was it cleared it out and never had another issue. Maybe some crap in the fuel tank had worked its way through.
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H4wkeye
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Re: Thoughts on fuel additives?

Post by H4wkeye »

Personally I've never used them but I've driven petrol engine cars for like 10 years. C5 is my first diesel so I'm treating it like a baby. :-D

Guess I'll try some Wynns total cleaner thing at some point. But first gonna top up some premium diesel
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Oldpug
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Re: Thoughts on fuel additives?

Post by Oldpug »

I used Forte products professionally for years, "it does what it says on the tin". https://www.forteuk.co.uk/product-categ ... el-system/
TZDunnit
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Re: Thoughts on fuel additives?

Post by TZDunnit »

Agreed Forte is good stuff, my 65 plate 330k Peugeot boxer failed its mot on emissions, a dose of FDT cleaned it up and to be fair was more responsive at lower rpm's after a bottle had gone through the tank, I usually steer well clear of any additives but I guess every now and again don't hurt.
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Re: Thoughts on fuel additives?

Post by H4wkeye »

Cheers. I think we have Forte here too, though the most popular ones and available everywhere are Wynns and Liqui Moly. I reckon they work well too.