Spark Plugs For A '47 Dodge Sedan

[De Soto Frank]

I've been running Autolite 303 or 308 in my '41 De Soto for the last 15 years / 30,000 miles.  Original spec was for Auto-Lite A7 or A7B.

 

Seem to work okay, and are readily available.

 

 

I have never run across an old MoPar ( or any other make for that matter ) that still had Autolie A7 or A5 plugs in it... those plugs are long, long obsolete.  I've never even run across them at yard sales or flea marts...

 

Frank

[Don Coatney]

I've been running Autolite 303 or 308 in my '41 De Soto for the last 15 years / 30,000 miles.  Original spec was for Auto-Lite A7 or A7B.

 

Seem to work okay, and are readily available.

 

 

I have never run across an old MoPar ( or any other make for that matter ) that still had Autolie A7 or A5 plugs in it... those plugs are long, long obsolete.  I've never even run across them at yard sales or flea marts...

 

Frank

Frank;

If I recall 10 or so of those 15 years ago your Soto had a smoking habit. Still puffing?

 

[De Soto Frank]

Frank;

If I recall 10 or so of those 15 years ago your Soto had a smoking habit. Still puffing?

 

 

Yep.  Still smokin'.  Like Cheech & Chong.   It should be an interesting post-mortem when I finally pull this mill down.

[Frank Elder]

With the unleaded gas on the market these days you can get a lot more than 15-20 thousand miles on a set of sparkplugs. At least double that and more.

Don I finally changed  plugs at 112,000 on my wife's 07 cobalt about half the electrode was gone on all 4.....put in those fancy pants bosch 4 prongers....sure threw the computer for a loop until it acclimated!