Vitz 2002 1000cc spark plugs

[sastheayubian]

I went to change the spark plugs at Chaudry autos in peshawar but they didn't have K16RU instead the gave me K16RU11.please I haven't installed them yet.Main purpose is fuel economy.i checked the manual.these are for 1300cc engine.Are these compatible or do I return them.or any there any other alternative for my 1000cc engine . Thanks

[FaatehRehman]

1SZ-FE Spark Plug Gap

Is it 0.8 or 1.1? I can find both mentioned online. An online blog suggests that 1.1 is used for tropical climates like Malaysia and Indonesia while 0.8 is used for European countries with colder climate, As our weather is in between both, which should i prefer? I think that more gap means "larger" spark with a chance of misfire, while less gap means "smaller" spark thus inefficient combustion. P.S. This is engine for 1st generation Vitz and Platz (1000 cc)

[FaatehRehman]

11 in K16RU11 means 1.1 gap while standard gap is 0.8 in K16RU

[sastheayubian]

These are Indonesian made. Do I go with them or return them? Mileage is my preference, not performance. Honestly didn't understand the gap thing

[FaatehRehman]

They will work fine. You can set them to 0.8 if you want stock setting. Gap can be adjusted. I am using them at 1.1 in 1000 CC Platz (same engine) and it is working fine.

[sastheayubian]

ok thanks.