Monthly Archives: October 2014

Diesel Bug (Bacteria Contamination of Diesel)


A.K.A the Diesel Bug (Bacteria Contamination of Diesel)

If the diesel bug not treated in time, it will cause a lot more problems, Just ask your garage what the fuel filter looked like when you get your car serviced. Or leave it to the professionals and we will tell you –North East Remaps

diesel bug

diesel bug treatment

The physical effects of microbiological contamination (diesel bug) are the formation of sludges, biofilms (slimes) and surface or interfacial scums. These occur in the fuel tank and also manifest themselves as material which block filters. Fuel that is infected with bacteria is not reliable and there are many and varied consequences of using contaminated fuel.

These include:
Encouraging growth of further contamination
Reduced filter life (fuel filter clogging and blockage)
Coalescer malfunctions
Engine wear due to variations in fuel flow
Corrosion of the fuel system
Corrosion of engine fuel injectors
Damage to in-line instruments
Corrosion of the fuel/storage tanks and lines
High fuel consumption
Blockage of pipes & valves
Increased water content (damage to components from water)
Breakdown of diesel (poor lubricity)
Health problems (Endotoxin producing bacteria)
Total engine failure (starvation of fuel)

Ultimately, performance suffers and fuel consumption and maintenance costs increase, but perhaps the most critical concern is the real potential for blockages in the fuel system which cause engine failure while underway – with potentially devastating consequences.

Growth in Fuels and Oils
Microbial contamination (Diesel Bug) of petroleum products is a well documented and serious problem facing the petroleum industry. Where ever diesel is used or stored, bacteria, moulds and yeasts are able to degrade the hydrocarbons in the diesel and yet more are able to feed on the intermediate by-products of the degradation.

Evidence of the diesel Bugs
Virtually all fuel has some bacteria life however it may not be that apparent to the naked eye. These microbes start off as small microscopic single, separate living cells. At this point, they can pass though any size filter medium, and injector nozzles. However, their growth can be very rapid. Given the right conditions, a single cell weighing one millionth of a gram can grow into a bio-mass of slimy algae mats within twenty four hours. By the time you can visually see evidence of growth, the infestation problem is quite severe. Not all growth happens so suddenly. In some situations, growth occurs slowly, creating problems during development.
There are many different types of organisms that make up what we refer to as diesel “bugs”. Generally, there are aerobic types; requiring oxygen for metabolism, and anaerobic types that don’t. The aerobic types are responsible for the algae and slimy mats, while the anaerobic bacteria, known as SRB’s (sulfur reducing bacteria) produce hydrogen sulfide as a by-product of their metabolism. Combined with moisture, strong sulfurous acids are formed, which are corrosive to metals. Evidence of this type of bacteria is usually seen a black grit resembling coffee grinds. The following are some telltale symptoms of microbial contamination:
Slimy material – in filters, tanks, and other fuel system components
Black grit – in filters, and water separator bowls
Corrosion – to fuel system components due to acids produced
The diesel fuel itself, since it is degraded, also shows symptoms:
Color – fuel is darker, and can be more opaque
Odor – a rotten egg smell due to hydrogen sulfides
A number of microbial and chemical processes produce corrosive by-products including strong organic acids and sulphides. These can degrade protective coatings such as paints, rubber, some plastics and metal oxide films as well as destroy or inactivate chemical corrosion inhibitors and cause hydrogen embrittlement of metals. Black deposits on copper or copper containing alloys in pipe work and bearings as well as pitting are evidence of microbial induced corrosion.
Engines rely on high quality fuel that has been properly filtered and separated (from water), with no flow restrictions, to achieve proper atomisation, combustion, engine performance and fuel efficiency.

Using Biocides
Biocides are frequently used to treat severe contamination, however many of them are hazardous chemicals and require careful handling. Although some are marketed as being “environmentally friendly”, many are harmful to the environment and waste disposal contractors may need to be called in if waste containing dead microbes and biocide are to be removed.
Adding biocides to the fuel system can actually cause more problems. The fallout of dead cells collecting on the bottom of the tank forms a sludge material that can still find its way into the fuel system, clogging fuel lines and filters, potentially leading to performance problems and possibly engine damage. This can be especially true in rough weather when the contents of the tank are effectively shaken into suspension.
Furthermore, over time biocides lose their effectiveness as microbes build up immunity to the chemicals. Occasional dosing can actually accelerate this action and some owners have reported bio-mass growth in systems despite regular treatments with biocides.
Thus biocides can actually contribute to the problems of microbial contamination; not only by causing a large amount of sludge to build up but by also giving a crew a false sense of security.

Your Car Got A Bug ? We Can Help – 0191 3759404

Vauxhall Zafira CIM Replacement

Vauxhall Zafira CIM Replacement

Vauxhall Zafira CIM Module replacement after diagnostics because the SRS airbag & Horn not working, due to a internal failure, These CIM modules are fully immobiliser programed across the gateway and without the correct tools & programming the car will never start.

We have been fully reseting and programming these Vauxhall CIM Units from the first generation on the Vectra C in 2002 when the cars were New.

We help Vauxhall Main Dealers and garages with these units and other ECU’s when there is no car pass or car pass records are different for the security code for the keys to login and get full access to the car.

Contact Us Today – 0191 3759404

Vauxhall Zafira CIM Replacement, Vauxhall CIM Replacement

Vauxhall Zafira CIM Replacement

Vauxhall Zafira CIM Replacement

Vauxhall Zafira CIM Replacement

Vauxhall CIM Replacement

VW Sharan Tdi for Fuel Saving

  VW Sharan Tdi for fuel saving economy remapping with reported gains now for 45mpg around the door’s with a average before from 35-37mpg
That’s a extra 8 mpg more.

VW Passat Tdi Ecu Remapping

2011 VW Passat Tdi Ecu Remapping here at country durhams most popular choice for professional ecu perfomance software upgrades.

With reported fuel savings from customer’s with a  3 – 8 mpg increase give us a call too see what we can do for you

Don’t confuse us with any other tuning company in durham.

The True North East Remaps as many try and copy our name but nothing can compares to the real deal.

Software upgrades might be cheaper than you think, remap prices starting from £200

Landrover Freelander Td4 No Power

Landrover Freelander Td4 brought in for ecu remapping for more power, after pre checking the system and under bonnet visual inspection it was obvious there was a problem due a split top intercooler pipe which is a common fault on the early  diesel range, With a quick road test after a replacement pipe was fitted the car still had under power issues.

We refused to remap the car unfortanlly untill further investigations was done on the system, to confirm any other problems.

Here at North East Remaps we will advise and refuse to remap your car if we suspect that you have a outlying problem on your car.

Professional Advice – 0191 3759404