I have a chery A5 with chery SQR484F 2.0 L engine installed. it replaced the original chery SQR481FF 1.6 engine. car's manual stated that suitable spark plugs for the original engine is FR7DTC which is Bosch made (Carbon). this spark plug's Gap is 0.8mm and its heat range is 7 (Bosch standard) with resistor 6K Ohm. i want to try platinum ones, as life span is much longer (60.000 km vs. 20.000 km) and as far as i know spark is more accurate. so i made a research and finally found Bosch 6724 FR7DPP30X Gap: 1.1mm Heat Range: 7 with resistor 6K Ohm. https:/
and its equivalent NGK 7092 BKR6EGP (BKUR6EGP)
Heat Range: 6
with resistor 5K Ohm.
https:/ www.boschsparkplugs.net/ product.aspx?zpid=27961 /
Gap can be modified easily to match 0.8mm and heat range 6 in NGK is the same 7 for Bosch. both are same measurements of the Carbon one.
my question is: am i going to face any problems replacing Carbon with Platinum??
also what's the difference between 6K & 5K Ohm resistors?? is it safe to use the 5K Ohm NGK? www.ngk.com/ product.aspx?zpid=9329