General Redex engine cleaner?
- Thread starter mike.said
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General Redex engine cleaner?
tubbies7
New member
Hi Mike i have herd alot of people who say that it is good to put redex in your car. i put redex in my bravo hgt 2L 20v since then everytime i start my car the injector light stays on if i turn it off then back on again it goes out. so personaly i wouldn't use it. craig
I occasionally use Diesel Redex if I've been using supermarket fuel regularly. It does seem to perk the car up a bit. Don't bother if I've used Shell, BP etc which already contain adequate cleaning agents (don't use Esso as they're b******s see http://www.greenpeace.org.uk/climate/stop-esso). I've found Wilkinsons are cheapest for Redex at less than £1 a shot.
tubbies7
New member
no it was just the same
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for Diesels use... http://www.fasteronline.co.uk/Mille....html?osCsid=5f2639fcf71d363f6ce3d85f42f05dc0
It must be the "power sport 4" because the older "power +" is not Euro IV compliant.
It must be the "power sport 4" because the older "power +" is not Euro IV compliant.
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http://www.millersoils.net/1_Millers_frame_AUTO_RETAIL.htm
Some reading. Can be found alot cheaper.
They do petrol additives too.
Some reading. Can be found alot cheaper.
They do petrol additives too.
you can regularly add redex style detergents, or you can use super unleaded (it works out cheaper and more effective using redex), both will in theory lead to cleaner valves. in practice the effect it has is negligible because both redex and super unleaded additives are really just 95% paraffin. that paraffin can help to clean your injectors as it passes through them, but in the very dilute amount it wont really help significantly. it will clean the inlet valves as the fuel injector sprays pretty much on to the valve, but they are clean on that inlet side anyway because they are closed during combustion. it wont have any effect on your exhaust valves since the paraffin is combusted in the cylinder before it passes through the exhaust valve. the theory is that on the compression stoke both valves will be closed and the cylinder will then have high pressure paraffin cleaning on the inside of both valves. in reality this doesn’t happen because it takes a lot more than a millisecond for paraffin to dissolve the carbon so it can be burnt, and the paraffin will be very diluted even if it did have more time to act.
to overcome the ineffectiveness of fuel additives you can give your valves a proper clean. remove the sparkplugs and pour some (15ml) redex in each cylinder, then turn the engine over for 30 secs. now your valves are covered in paraffin, which dissolves the carbon deposits. wait 5 mins to allow that to happen, then refit the sparkplugs and fire it up so you can burn those carbon deposits off. i do this at every service.
to overcome the ineffectiveness of fuel additives you can give your valves a proper clean. remove the sparkplugs and pour some (15ml) redex in each cylinder, then turn the engine over for 30 secs. now your valves are covered in paraffin, which dissolves the carbon deposits. wait 5 mins to allow that to happen, then refit the sparkplugs and fire it up so you can burn those carbon deposits off. i do this at every service.
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johnstoke
Member
Agree with Jug, a work colleague used to work for Holts-Lloyds as it used to me ,and certainly the old school redex (circa 1990) apparantly was literally nothing more than white spirit, with dye in it, and 'a sort of wax' to thicken it up, so you feel as though you are getting something for your money. c
Dont waste your money, it was completly useless on my hgt 
JUG: when you say put it in each cylinder, do you do this by pouring it in the hole where the plug was? Cheers
JUG: when you say put it in each cylinder, do you do this by pouring it in the hole where the plug was? Cheers
Dont waste your money, it was completly useless on my hgt
JUG: when you say put it in each cylinder, do you do this by pouring it in the hole where the plug was? Cheers
where else
no use redex, use forte or if you cant find that comma do a good one, add to tank
Cheeky gitwhere else
Just had to make sure that jug didnt have a super special way of pouring it in
i think jug is getting mixed up between fuel additives. and engine additives, a lot of engines additives are chlorinated paraffin
Cheeky git
No doubt he has some special piece of hose pipe and a funnel which in turn doubles as his mechanics stethoscope.
He could be, but i think he's talking about using redex to remove the carbon deposits on the valves etc. Most engine additives i've used go in the oil rather than the cylinders.. although granted engine flush for loosening oil and crud from your oil system is mainly kerosene.
That What I Mean He Talking About 2 Diffrent Things As One
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fuel additives are also paraffin, redex is 95% paraffin and 5% ATF fluid.
but you dont have to add it to your fuel (where it cant help), you can add it directly to your cylinders instead then you really do clean your valves. in the good old days this was explained on the bottle.
i dont have any magic method, i just pour it down the plug holes like the instrucitons told me to.
it really does work, i've actually been able to tell the difference on older engines. you get more power and better mpg due to improved compression.
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jeffas do you mean sticking it in your fuel tank or directly in your cylinders?
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