Sparkplug Specifications For UK Mitsubishi Mirage/Space Star 1.0L 2013

[SS1]

Hello,

I have a Mitsubishi Mirage/Space Star 1.0L, 2013, engine model 3A90.

The manual lists the sparkplug as a NGK DILFR6A11
however this appears to be difficult to locate and unlisted at the UK/USA NGK websites.

NGK USA does list the 5468 SILFR6A11 which is available, though expensive ("longest life available").

Other posts indicate the NGK 93298 as an alternative.
This is listed at the NGK USA website as a LZFR5BI-11 for a 2014 or 2015 M. Mirage, L3 1.2L
(there is no 2013 Mirage/Space Star entry, nor a 1.0L reference).

The NGK UK website appears to have no current (2012-) Mirage/Space Star sparkplug listing.

My attempted analysis of these part numbers using a NGK key and US website information is,

NGK DILFR6A-11
Laser Iridium Sparkplug,
...14mm OD thread size ?

D = ?
I = ?
L = thread reach 26.5mm ?
F = metal shell size, ø 14,
.......19mm (3/4”) Reach (contradicts L?),
.......16mm (5/8”) Hex.
R = resistor type
6 = heat rating (2=hot, 11=cold)
A = special design
11 = 1.1mm gap


NGK 5468 SILFR6A-11
...0.6mm Iridium center electrode, fine wire
...Platinum, taper cut, on the ground electrode,
...5K ohms resistance
...14mm OD thread size
...longevity 80-100k (miles?)

S = ?
I = ?
L = thread reach 26.5mm ?
F = metal shell size, ø 14,
.......19mm (3/4”) Reach (contradicts L?),
.......16mm (5/8”) Hex.
R = resistor type
6 = heat rating (2=hot, 11=cold)
A = special design
11 = 1.1mm gap


NGK 93298 LZFR5BI-11
Laser Iridium Sparkplug,
...laser welded 0.6mm (0.8mm listed elsewhere) Iridium center electrode, fine wire
...laser welded Platinum on the ground electrode,
...5K ohms resistance
...longevity 80-100k (miles?)
...features : extended shell

L = thread Reach 26.5mm ?
Z = extended gap ?
F = metal shell size, ø 14,
.......19mm (3/4”) Reach (contradicts L?),
.......16mm (5/8”) Hex.
R = resistor type
5 = heat rating (2=hot, 11=cold)
B = special design
I = ?
11 = 1.1mm gap

Photos show all three, DILFR6A-11, SILFR6A-11, and LZFR5BI-11 to have
a similar tapered central electrode.


My questions are,

1. Is the NGK 93298 LZFR5BI-11 suitable for a M. Mirage/Space Star 2013 1.0L 3A90 engine ?

2. Is there any difference in the spark plug requirements between a 1.0L and a 1.2L
.....M. Mirage Space/Star, or across years 2012 onwards ?

3. Is there any other alternative for a NGK DILFR6A11 in Europe ?

Thank you.