'87 Non-Turbo

Went to checker, they pulled up plugs, they were the NGK BUR7EQ and the BUR9EQ

Every site I'm seen says use the BUR6EQ and the BUR8EQ.

I'm not racing the car, and it'll be mostly city driving. I'm thinking I'll just foul these colder plus.
I've never heard of adjusting plugs for altitude (I'm in Denver, 5,200 FT) , just usage, and I definitly don't feel I need the colder plug.

So, is everything I'm reading refering to the Turbo cars, or did check just give me the wrong thing.

Murdock

 

stock is 7 and 9. never seen 6 or 8

 

Ditto

 

stock is 7 and 9, nine being on top and 7 on bottom! thats what i run, wierd on 6 or 8!!!

 

In some instances, Mazdatrix suggests using the colder plugs.

http://www.mazdatrix.com/ign-2.htm

 

well the manual says use the 9 and 7 so i think u should go with it!!

 

ya and the 7/9 is colder then 6/8....

I run four 9's

 

Yea, Mazda Trix is one site I looked at, a few others say the 6/8 combo too.

Well, I'm glad checker was right since I dropped $20 on the plugs

Now, just gotta change all the damn fluids, belts, wires, and put the interior back in it.

I've been working on the stereo side of things for about 3 week solid since I got it, haven't even touched the engine really.

Thanks again

Murdock