High Performance BRISK Silver Spark Plugs for SKODA 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
Model CC kW (hp) Engine Year (LGS) > LPG/CNG/Petrol (YS) > LPG/CNG/Petrol
100 1,0 32kW   10.69-12.79   NR15S
1000 MB 1,0 30kW   10.63-10.69   NR15S
105 S,L 1,05 33,1kW 742.10 08.76-12.90   NR15S
110 L,110LS 1,1 36-38kW   01.70-12.79   NR15S
110 R 1,1 38kW   08.70-12.81   NR15S
1100 MB 1,1 32kW   10.63-10.69   NR15S
120 GL 1,2 36,7kW 742.12 08.76-12.90   NR15S
120 GLS 1,2 40,5kW 742.12X 08.76-12.90   NR14S
120 Garde,Rapid 1,2 40,5kW 742.12 09.81-12.90   NR14S
120 L 1,2 36,7kW 742.12 08.76-12.90   NR15S
120 LS 1,2 40,5kW 742.12X 08.76-12.90   NR14S
1203 1,2     -12.82   NR15S
1203 1,2     01.83-   NR14S
1203 1,5   776.14     LR14YS
1203 1,5   776.14K     LR14YS
1203 1,5   776.14Ki     LR14YS
125 L 1,2 38kW   -12.90   NR15S
130 L,GL 1,3 43kW 742.13 09.84-12.90   NR14S
130 Rapid 1,3 46kW 742.13 03.85-08.88   NR14S
135 Favorit 1,3 40kW 781.135(SPI) 01.93-   DR17YS
135 Favorit 1,3 43kW 781.135 -12.89   DR17YS
135 Favorit 1,3 43kW 781.135 01.90-12.92   DR17YS
135 Favorit 1,3 50kW 781.136(SPI) 01.93-   DR15YS
135 Forman 1,3 40kW 781.135(SPI) 01.93-   DR17YS
135 Forman 1,3 43kW 781.135 01.91-12.92   DR17YS
135 Forman 1,3 50kW 781.136(SPI) 01.93-   DR15YS
135 L,GL,Rapid (Typ 742..) 1,3 40kW 742.135 09.84-12.90   DR17YS
135 Pick-Up 1,3 40kW 781.135(SPI) 01.93-   DR17YS
135 Pick-Up 1,3 43kW 781.135 01.91-12.92   DR17YS
135 Pick-Up 1,3 50kW 781.136(SPI) 01.93-   DR15YS
135 Praktic 1,3 40kW 781.135(SPI) 01.93-   DR17YS
135 Praktic 1,3 43kW 781.135 01.91-12.92   DR17YS
135 Praktic 1,3 50kW 781.136(SPI) 01.93-   DR15YS
136 Favorit 1,3 50kW 781.136 01.90-12.92   DR15YS
136 Forman 1,3 50kW 781.136 01.91-12.92   DR15YS
136 L,GL,Rapid (Typ 742..) 1,3 46kW 742.136 09.84-12.90   DR15YS
136 Pick-Up 1,3 50kW 781.136 01.91-12.92   DR15YS
136 Praktic 1,3 50kW 781.136 01.91-12.92   DR15YS
Fabia 1,0 37kW ATY 02.00- DOR15LGS DR15YS-9
Fabia 1,0 37kW ARV 10.00-08.02 DOR15LGS DR15YS-9
Fabia 1,0 37kW AQV 01.00-08.02 DOR15LGS DR15YS-9
Fabia 1,2 40kW BMD 05.04- DOR15LGS DR15YS
Fabia 1,2 40kW AWY 06.01-05.04 DOR15LGS DR15YS
Fabia 1,2 47kW BME 11.04- DOR15LGS DR15YS
Fabia 1,2 47kW AZQ 01.03- DOR15LGS DR15YS
Fabia 1,4 74kW BBZ 05.02- DOR15LGS DR15YS-9
Fabia 1,4 55kW BBY 04.02-05.04 DOR15LGS DR15YS-9
Fabia 1,4 44kW AZF,AZE 01.00-03.03 DOR15LGS  
Fabia 1,4 50kW ATZ 09.99-01.01 DOR15LGS  
Fabia 1,4 50kW AME 09.99-05.03 DOR15LGS  
Fabia 1,4 50-55kW AQW 12.99-05.03 DOR15LGS DR15YS-9
Fabia 1,4 50-55kW AUA 12.99-08.03 DOR15LGS DR15YS-9
Fabia 1,4 55kW BKY 05.04- DOR15LGS DR15YS
Fabia 16V 1,4 74kW AUB 09.99-08.03 DOR15LGS DR15YS-9
Fabia 2,0 85kW AZL 01.00- DOR15LGS DR15YS-9
Fabia 16V Automatic 1,4 55kW BBY 04.02-05.04 DOR15LGS DR15YS
Felicia 1,3 40/50kW (MPI) 09.96- DOR15LGS DR15YS
Felicia 1,3 40kW (SPI) 10.94-   DR17YS
Felicia 1,3 50kW (SPI) 10.94-   DR15YS
Felicia 1,4 44-50kW MPI 01.99- DOR15LGS DR15YS
Felicia 1,6 55kW AEE(MPI) 08.95- LOR15LGS LR15YS-9
Octavia i 1,4 44kW AMD(MPI) 02.99-03.01 DOR15LGS DR15YS
Octavia i 1,4 55kW AXP 03.98-08.02 DOR15LGS DR15YS-9
Octavia i Automatic 1,4 55kW AXP 08.00-01.02 DOR15LGS  
Octavia i 1,4 55kW AKQ 01.00- DOR15LGS DR15YS-9
Octavia i 1,4 55kW APE 01.00- DOR15LGS DR15YS-9
Octavia i 1,4 55kW AHW 05.99- DOR15LGS DR15YS-9
Octavia i II 1,4 55kW BCA 02.02- DOR15LGS DR15YS-9
Octavia i 1,6 55kW AEE(MPI) 10.96-09.04 LOR15LGS LR15YS-9
Octavia i 1,6 74kW AEH(MPI) 10.96- DOR15LGS DR15YS-9
Octavia i 1,6 74kW AKL 08.98- DOR15LGS DR15YS-9
Octavia i II 1,6 74kW BFQ 01.02- DOR15LGS DR15YS-9
Octavia i II 1,6 75kW BSF 05.05- DOR15LGS DR15YS-9
Octavia i II 1,6 75kW BSE 05.05- DOR15LGS DR15YS-9
Octavia i 1,6 75kW AVU 06.98-08.02 DOR15LGS DR15YS-9
Octavia i II 1,6 75kW BGU 02.04-05.05 DOR15LGS DR15YS-9
Octavia i II 1,6 85kW BLF 05.04-    
Octavia i II FSI 1,6 85kW   06.06- DOR15LGS DR15YS
Octavia i Turbo 1,8 110kW ARZ 01.00-07.00 DOR15LGS DR15YS-9
Octavia i Turbo 1,8 110kW AEB 02.98- DOR15LGS DR15YS-9
Octavia i Turbo 1,8 110kW AUM,ARX 06.98-08.06 DOR15LGS DR15YS-9
Octavia i RS Turbo 1,8 132kW AUQ 03.98-01.06 DOR15LGS DR15YS-9
Octavia i 20V 1,8 92kW AGN(MPI) 10.96-03.00 DOR15LGS DR15YS-9
Octavia i 20V Turbo 1,8 110kW AGU 02.98- DOR15LGS DR15YS-9
Octavia i 2,0 85kW AZH,AEG 11.99-01.05 DOR15LGS DR15YS-9
Octavia i 2,0 85kW APK 05.99-04.00 DOR15LGS DR15YS-9
Octavia i 2,0 85kW AQY 04.99-03.02 DOR15LGS DR15YS-9
Octavia i 2,0 88kW ATF 11.99- DOR15LGS DR15YS-9
Octavia i II 2,0 85kW AZJ 10.99-01.06 DOR15LGS DR15YS-9
Octavia i II FSI 2,0 110kW BLX,BLR,BLY 11.04-11.05 DOR15LGS DR15YS-9
Octavia i II FSI 2,0 110kW BVY 11.05- DOR15LGS DR15YS-9
Octavia i II FSI 2,0 110kW BVX 11.05- DOR15LGS DR15YS-9
Octavia i II FSI 2,0 110kW BVZ 05.06- DOR15LGS DR15YS-9
Octavia i II RS TFSI 2,0 136-147kW BWA 05.06- DOR15LGS DR15YS-9
Octavia i II V6 3,2 184kW BUB 05.06-    
Roomster 1,2 47kW BME 05.06- DOR15LGS DR15YS
Roomster 1,4 63kW BXW 05.06-    
Roomster 1,6 77kW BTS 05.06-    
Superb i 2,0 85kW AZM 10.01- DOR15LGS DR15YS-9
Superb i Turbo 1,8 110kW AWT 10.01- DOR15LGS DR15YS-9
Superb i 2,8 142kW AMX 10.01- DOR15LGS DR15YS
Superb i 2,8 140kW BBG 06.02- DOR15LGS DR15YS
 
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