1991 440 1.7 misfire? - Page 2

GTMaster · Dec 13th, 2009, 15:43

My post is irrelevent to the main thread but i was just curious about the type of spark plugs used in the 400 series: On the NGK website it says NGK ZGR5B plugs for the 400 series. I just changed the 7 year old (did about 70000 kms) NGK BPR6ES plugs with the same type as i was satisfied with them (1.7 cat. engine avg max. 8-8.5L/100KM fuel consumption). B20F said he recommends NGK BPR7ES plugs. So which one is the ideal one?

B20F · Dec 13th, 2009, 18:20

For the 1700 the bpr6es is also ok. The bpr7es is one step colder as the 6 and a bit more suitable for highwayspeeds and the 6 is more suitable for citydriving. So it depends on the use of the car.

Dec 13th, 2009, 15:43	#11
GTMaster Senior Member Last Online: Nov 7th, 2016 22:32 Join Date: Sep 2008 Location: Melbourne	? My post is irrelevent to the main thread but i was just curious about the type of spark plugs used in the 400 series: On the NGK website it says NGK ZGR5B plugs for the 400 series. I just changed the 7 year old (did about 70000 kms) NGK BPR6ES plugs with the same type as i was satisfied with them (1.7 cat. engine avg max. 8-8.5L/100KM fuel consumption). B20F said he recommends NGK BPR7ES plugs. So which one is the ideal one?

Dec 13th, 2009, 18:20	#12
B20F Master Member Last Online: Jul 7th, 2016 21:43 Join Date: Mar 2007 Location: Zeist View Photos By: B20F	For the 1700 the bpr6es is also ok. The bpr7es is one step colder as the 6 and a bit more suitable for highwayspeeds and the 6 is more suitable for citydriving. So it depends on the use of the car. __________________

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