High Performance BRISK Silver Spark Plugs for DAEWOO Petrol, LPG & CNG Motor Vehicles
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Fitting the Correct Spark Plugs for LPG - CNG or Petrol
Check to see what spark plugs you have fitted in your vehicle, if you have platinum or Iridium tipped spark plugs fitted they are No good for LPG or CNG there is No such thing as an iridium or platinum LPG spark plug! we recommend you replace your spark plugs with Genuine LPG / CNG spark plugs > Brisk Silver Spark Plugs are made for LPG - CNG & Petrol they have solid silver electrodes to produce a superior spark as you can clearly see in the chart below Silver has the highest Thermal & Electrical Conductivity where as Nickel, Platinum & Iridium are very poor, Silver spark plugs come in two types (YS) single electrodes for all vehicle types & The (LGS Premium) type multi electrode type theses can only be fitted to modern vehicles with electronic ignition systems they are not recommended for older vehicles with ignition points or poor ignition systems, the LGS spark plugs are specially designed by Brisk to produce incredible sparks across 2.9 mm gaps in a 360 degree firing pattern - theses are special spark plugs they cannot & do not require any adjustment they are ready to fit.

Do Spark Plugs make a Difference?
Yes 100% - Vehicles fitted with Poor Quality spark plugs produce a weak spark, to ignite a fuel with a weaker spark the engine requires a much richer fuel mixture - with poor spark plugs you will use more fuel even petrol, when running a vehicle on LPG or CNG you need a much stronger spark due to LPG & CNG being a dry fuel it is harder to ignite than petrol so you need a much richer fuel mixture! most vehicles are fitted with lambda control systems like petrol injection vehicles which correct the mixture by monitoring the exhaust emissions this can lead to a serious problem running on LPG or CNG with weak spark plugs as un burnt LPG or CNG has an affect on the vehicles lambda exhaust probe sensors which makes the sensors read incorrectly (weaker) the vehicles Ecu or lambda control system detects this & tries to correct this by increasing the fuel mixture even more although the system now thinks the mixture is correct is Not it is incorrect the engine is actually running far to Rich not only is this decreasing your fuel economy but also increasing the exhaust emissions CO & HC no longer a green conversion in some tested we have found the emissions to be much higher than petrol emissions & failed MOT's, this also has an increased affect on the engine & exhaust temperature which can seriously damage the catalytic converter due to overheating.

Common Symptoms found with Weak Spark Plugs
Poor Fuel Economy, Misfires, Poor idle, Stalling, Hesitation & Jerking under load, Less Power, Poor Performance in some cases undrivable on Lpg or Cng, Back fires, Engine management light coming on, Limp home mode, Exhaust system overheating, Lambda sensor damage, Catalytic converter damage, etc..

Spark Plug Gaps for LPG & CNG
when fitting Brisk Single Silver Electrode (YS) spark plugs it is recommended to set the spark plug gaps to the manufactures recommended gap as for Petrol unless otherwise listed for your model like (DR15YS-9) -9 being the recommended gap = 0.9 mm etc… if the gap is not listed then use the manufactures recommended on some vehicles with spark monitoring try reducing the spark plug manufactures gap by  0.1 mm to compensate for the dryer fuel - The (LGS) type spark plugs are specially designed spark plugs which produce incredible sparks across large gaps like 2.9 mm theses cannot & do not require any adjustment they are ready to fit.

Economy & Customer Feed Back on LPG , CNG & Petrol
Please Note: Fuel Economy on any fuel is very difficult to calculate as we all drive differently, all have different loads, all use different equipment & tuning of the systems, when fitting the New spark plugs the system should be retuned as most have be setup rich to work on the old type spark plugs, etc..  if you have tuning equipment you can do your own calculations by comparing the original tuning map to the new map tuning with the new plugs fitted, or by monitoring your fuel figures prior to fitting & then after, I always like to receive customer feedback of there test results, etc...!

Feed back from customer tests the results = on LPG increase in economy from 5 to 30% a few claiming more! - on Petrol up to 10% - Performance increase up to 5% - Noticeable while driving most customers say they have noticed the difference in driving the vehicle saying it is more crisp & responsive with better fuel economy, customers with prior problems like hesitation, jerking, very poor economy caused by poor spark plug ignition have found the plugs solved most problems & after retuning the system to use the correct mixture, etc...  Motor cyclist noticed the difference in power & power band smoothness as well as a slight increase in fuel economy, etc...

But note: this does not mean you will get an increase or solve any of you systems problems as many other factures must be taken into consideration & account like the increase in fuel economy can be used as power & performance depending on how you drive! plus any Vehicles faults with the petrol or LPG system/s & Poor tuning, etc...

The following Tests Mapping Charts are photos of the tuning done on a Toyota Amazon 4.7i V8 fitted with the Vogas gas injection system fitted with split fuel capability.

The First Chart (left)
fitted with Original Iridium spark plugs the results = very poor economy on LPG, System had use split fuel to inject 30% petrol under load to stop misfires juddering due to poor ignition of the fuel

The Second Chart (middle)
fitted with Standard Copper spark plugs the results = an improvement in economy & split fuel reduced to inject only 15% petrol under very hard load

The Final Chart (right)
Fitted with Brisk DOR15LGS Premium Silver spark plugs the results = increase in fuel economy by other 30% compared to Iridium spark plugs, split fuel turn off running 100% LPG, no hesitation, no misfires or juddering, map greatly reduced
Thermal & Electrical Conductivity of Spark Plugs the Best being Silver!

Spark Plug
Centre Electrode
Material

Thermal
Conductivity
(M•K)

Electrical
Conductivity
MS/m

Spark Plug
Expected Life
(Miles)

Silver

407

66

25/30,000

Copper

384

57

25/30,000

Gold

310

45

unknown

Iridium

147

18

90,000

Platinum

70

10

90,000

Nickel

59

10

10/20,000

Testes done on Toyota Amazon 4.7i V8 with original Iridium - Standard Copper & Brisk LGS spark plugs

Charts Clearly show a Good Reduction in Fuel Mixture being Injected across all Loads indexes

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To Order > Make A Note of the Plugs listed for your Model then Click the (Add to Cart) Button this will take you to a new page with the plugs listed to Buy

 
Note: Before Ordering if your model or Spark Plugs are marked with ???? marks
then you need to Email your Vehicle Details like below & Original Spark Plug Make & Number fitted - so I can confirm it is correct for your model
DAEWOO Model CC kW (hp) Engine Year (LGS) > LPG/CNG/Petrol (YS) > LPG/CNG/Petrol
Aranos i 1,8 70kW SOHC 11.94-   LR17YS-9
Aranos i 2,0 81kW SOHC 11.94-   LR17YS-9
Arcadia i 3,2 158kW   09.93-   DR14YS-9
Brougham 2,0 85kW C20LE Holden 09.91-12.95   LR17YS-9
Cielo i 1,5 57kW Opel-G15MF 08.94-   LR17YS
Cielo i 1,5 74kW A15MF 08.94-   DR17YS-9
Damas 0,8 28kW Suzuki 10.91-04.93   LR17YS
Espero 1,5 74kW A15MF 03.91-   DR17YS-9
Espero i 1,5 55-66kW Opel 04.93-   LR15YS
Espero i 1,5 66kW DOHC 16V 12.94-   DR15YS-9
Espero i 1,8 66-70kW C18LE 12.94-   LR15YS
Espero 2,0 77kW C20LE 02.95- LOR15LGS LR15YS
Espero,i 2,0 74-85kW Holden-C 20 LZ 10.90-   LR17YS-9
Evanda 1,9 96kW T20SED 2003 - DOR17LGS DR17YS
Imperial 3,0 135kW Opel-C30NE 02.89-   NR15S
Kalos SE 1,2 53kW B12S1 04.03- LOR17LGS LR17YS-9
Kalos SE 1,4 61kW F14S3 SOHC 04.03- LOR15LGS LR15YS
Kalos SX 1,4 69kW F14D3 DOHC 04.03- DOR15LGS DR15YS-9
Kalos i 1,4 61kW F14S3 09.02- LOR15LGS LR15YS
Labo 0,8   SOHC 1997 - LOR15LGS LR15YS
Lacetti 1,4 68kW F14D3 09.03- DOR15LGS DR15YS-9
Lacetti 1,6 80kW F16D3 09.03- DOR15LGS DR15YS-9
Lacetti 1,8 90kW T18SED 09.03- DOR17LGS DR17YS
Lanos i 1,3 55kW E-TEC SOHC 04.97-   LR17YS
Lanos i 1,4 55kW A14SMS 05.97-   LR15YS
Lanos i 1,5 63-71kW A15SMS 11.96-   LR15YS
Lanos i 16V 1,5 81kW E-TEC SOHC 11.96-   DR17YS-9
Lanos i 16V 1,6 78kW A16SMS 05.97-   DR15YS-9
Leganza 2,0 100kW X20SED DOHC 07.97- DOR17LGS DR17YS
Leganza 2,2   DOHC 07.97- DOR15LGS DR15YS-9
LeMans 1,5 63-65kW Opel 01.88-12.91   LR15YS
LeMans i 1,5 55kW Opel 09.88-   LR15YS
LeMans i 1,5 73kW DOHC A 15 MF 04.93-   DR17YS-9
LeMans i 2,0 73kW Holden-C 20 LZ 01.90-   LR17YS-9
Leganza i 1,8   E-TEC SOHC 03.97-   LR17YS-9
Leganza i 2,0 85kW E-TEC SOHC 03.97-   LR17YS-9
Leganza i 16V 1,8 100kW D-TEC DOHC 03.97- DOR17LGS DR17YS
Leganza i 16V 2,0 98-107kW X20SED 03.97- DOR17LGS DR17YS
Leganza i 2,2     07.97- DOR15LGS DR15YS
Matiz 0,8 38kW F8CV 04.98- LOR17LGS LR17YS-9
Matiz 1,0 47kW B10S 03.03- LOR17LGS LR17YS-9
Musso 2,0 100kW M 161.940 09.96- DOR17LGS DR17YS
Musso 16V 2,3 110kW M 161.970 11.96- DOR17LGS DR17YS
Musso 24V 3,2 162kW M 162.990 09.96- DOR17LGS DR17YS
Musso i 3,2 161kW   04.00-   DR17YS-9
New Brougham 2,0 85kW SOHC 01.96-02.97 LOR17LGS LR17YS-9
New Brougham 2,0 106kW DOHC 16V 01.96-02.97 DOR17LGS DR17YS
New Brougham 2,2 110kW DOHC 16V 01.96-02.97 DOR17LGS DR17YS
New Prince 1,8 81kW SOHC 04.96-02.97 LOR17LGS LR17YS-9
New Prince 1,8 101kW DOHC 16V 04.96-02.97 DOR17LGS DR17YS
New Prince 2,0 85kW SOHC 04.96-02.97 LOR17LGS LR17YS-9
New Prince 2,0 106kW DOHC 16V 04.96-02.97 DOR17LGS DR17YS
Nexia i 1,5 55-57kW SOHC 12.94-   LR17YS
Nexia i 1,5 66-67kW DOHC 16V 11.94- DOR15LGS DR15YS-9
Nexia i 1,8 74kW SOHC 12.95-   LR15YS
Nubira i 1,5   SOHC 11.96-   LR15YS
Nubira i 16V 1,5 81kW E-TEC DOHC 11.96- DOR17LGS DR17YS-9
Nubira i 16V 1,6 78kW DOHC 09.97- DOR17LGS DR17YS-9
Nubira i 16V 1,8 100kW D-TEC DOHC 11.96- DOR17LGS DR17YS
Nubira i 16V 2,0 98kW DOHC 11.96- DOR17LGS DR17YS
Nubria CDX 1,8 90kW T18SED 2003 - DOR17LGS DR17YS
Rexton RXi 3,2 160kW   06.02- DOR17LGS DR17YS-9
Rezzo i 16V 1,8 66kW   10.00-   DR17YS-9
Rezzo i 16V 2,0 94kW   10.00-   DR17YS-9
Prince 1,8 80kW Holden-C18LE 02.92-03.96   LR17YS
Prince 2,0 85kW Holden-C 20 LE 01.91-03.96 LOR17LGS LR17YS-9
Prince Brougham 2,0 85kW Holden-C 20 LE 09.91-03.96 LOR17LGS LR17YS-9
Prince Super Salon 2,0 85kW Holden-C 20 LE 09.91-03.96 LOR17LGS LR17YS-9
Racer 1,5     01.88-02.93   LR15YS
Royal Duke 1,5 65kW Opel-G15CR 05.87-12.89   LR15YS
Royal Prince 1,5 65kW Opel-G15CR 01.88-12.89   LR15YS
Royal Prince 1,9 78kW Opel-H19CR 09.80-12.87   NR15S
Royal Prince 1,9 78kW   01.88-12.90   NR15S
Royal Prince 2,0 87kW Opel-H20CR 09.80-12.87   NR15S
Royal Prince i 1,5 55kW Opel-G15SR 01.90-12.90   LR15YS
Royal Prince i 1,9 78kW Opel-H19MR 01.88-12.90   NR15S
Royal Prince i 2,0 94kW Opel-H20MR 01.88-12.90   NR15S
Royal Salon Super i 2,0 94kW Opel-H20MR 12.85-12.90   NR15S
Royal Salon i 2,0 94kW Opel-H20MR 01.88-12.90   NR15S
Royal XQ 1,5 62kW Opel-15N 08.82-05.86   NR15S
Tico 0,8 29kW Suzuki-F8C 06.91- LOR17LGS LR17YS-9
FSO Model CC kW (hp) Engine Year LGS) > LPG/CNG/Petrol (YS) > LPG/CNG/Petrol
Polonez 1,5 55kW   05.78-10.88   LR14YS
Polonez 16V Atu 1,4 76kW Rover-K16 DOHC 01.96- DOR15LGS DR15YS-9
Polonez 16V Caro 1,6   Rover-K16 DOHC 01.93- DOR15LGS DR15YS-9
Polonez Caro 1,5 55-60kW   01.89-06.95 LOR15LGS LR15YS
Polonez Caro 1,6 56-57kW CE,CF 01.92- LOR15LGS LR15YS
Polonez Caro 1,6 57kW CE 01.96- LOR15LGS LR15YS
Polonez Caro 1,6 64kW CB 05.87- LOR15LGS LR15YS
 
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