Spark Plugs

[Grrumpy]

OK...asking cause there's so much/many differing posts on plugs.....
Have 117,000 miles on my 2019 Expy with most of history from previous one owner. But can't find if plugs were replaced so going to get new installed.
I run 89 for everyday driving and 91-93 when towing our travel trailer.
Expy is stock with no tunes planned...will remain stock. Runs fine now but doing replacement as a preventive measure.
Looking at the NGK LTR-7-BHX for replacement, which seems to be the right plug....based on recent posts.
Again, only asking cause there is so much differing info on proper plugs for this engine.....
Input.......

 

[HILLY]

I run these. Haven't had any issues. Runs good and smooth.

More Information for NGK 90495

 

[99WhiteC5Coupe]

OK...asking cause there's so much/many differing posts on plugs.....
Have 117,000 miles on my 2019 Expy with most of history from previous one owner. But can't find if plugs were replaced so going to get new installed.
I run 89 for everyday driving and 91-93 when towing our travel trailer.
Expy is stock with no tunes planned...will remain stock. Runs fine now but doing replacement as a preventive measure.
Looking at the NGK LTR-7-BHX for replacement, which seems to be the right plug....based on recent posts.
Again, only asking cause there is so much differing info on proper plugs for this engine.....
Input.......

My two cents….

I always believe you can’t go wrong with the OEM recommended spark plug (and other maintenance stuff).

Spark plug usage are like engine oil filter usage - there are a many opinions.

OEM maintenance parts fit and function properly.

 

[Grrumpy]

My two cents….

I always believe you can’t go wrong with the OEM recommended spark plug (and other maintenance stuff).

Spark plug usage are like engine oil filter usage - there are a many opinions.

OEM maintenance parts fit and function properly.

Yeah, just went with the MtrCraft Sp-194 per advice from the local garage that will install. Master Mechanic and advised to go OEM for just that reason. I only use OE filters and figured stay with the OE.
Funny cause the OE plugs were about .50 cents more than the highly regarded NGK's both from Rock Auto. Still, under 10 bucks where local stores get 16-20 bucks.

 

[bmk1]

I ordered OEM from rock auto. Cheapest I could find by far.

 

[Grrumpy]

I ordered OEM from rock auto. Cheapest I could find by far.

Same here....delivery tomorrow. Almost 1/2 price of some others, including Amazon and auto parts stores.

 

[BigOleFordFan]

I ordered OEM from rock auto. Cheapest I could find by far.

Same here....delivery tomorrow. Almost 1/2 price of some others, including Amazon and auto parts stores.

"Can ya smell what da Rock is cookin" ?, hahahaha

I get lots of stuff from them, UNLESS da Zonner has it for less, which does happen, but not always...

 

[Grrumpy]

Replaced the plugs today. The old appeared to be the originals (2019 Expy) with 117,000 miles on them....and they look it. But the gap was not bad, and the Expy was still running great....no miss, no problems, although I'm sure mpg suffered. The Expy was purchased by me, used, one owner, came with records but nothing showed as far a plug replacement.
Lot of grunge and build up but no oil.
Replaced with SP-594's and engine purr's.

 

[Fastcar]

It ain't like the old days. Plugs out at 40K, coil soon after, the plug wires next. Now with the electronic and the high voltage things last forever.

 

[99WhiteC5Coupe]

It ain't like the old days. Plugs out at 40K, coil soon after, the plug wires next. Now with the electronic and the high voltage things last forever.

You must not be old enough to remember changing spark plugs every 8 -12 thousand miles, along with the distributor cap, points, condenser and rotor. Wires every other spark plug change. Small, inline fuel filter and PCV valve at every spark plug change. The one large ignition coil then seemed to last a long time. A stuck carburetor automatic choke could ruin a set of spark plugs quickly.

The only positive was the engine bays were large without a lot of obstructions. The work could be done quickly.

 

[Fastcar]

I'm old enough to remember indexing spark plugs. The inline filter was tossed for a larger canister filter, the auto choke was eliminated for a manual. I also remember swapping small block chevy points for big block points(stronger spring). I remember swapping different jets if a plug was showing rich.

 

[Grrumpy]

Thats nuthin............I remember oil bath air cleaners !!!!!
I remember "3 on the tree" and when linkage would hang up, you got out, opened the hood, and used a baseball bat to hit the linkage to free it !!!!
I remember drum brakes, granny gearing, 19 cent gas, road maps available at all the gas stations, and 30 weight oil cause thats what EVERY vehicle used !!!

 

[99WhiteC5Coupe]

Thats nuthin............I remember oil bath air cleaners !!!!!
I remember "3 on the tree" and when linkage would hang up, you got out, opened the hood, and used a baseball bat to hit the linkage to free it !!!!
I remember drum brakes, granny gearing, 19 cent gas, road maps available at all the gas stations, and 30 weight oil cause thats what EVERY vehicle used !!!

My first car at age 16 was a 1965 Chevrolet Chevelle 2-door with the straight six-cylinder engine and the “three on the tree” manual shift transmission.

My first job at age 15 was working in a Texaco “filling station”. We sold regular and high-test gasoline. We did sell mostly 30-weight oil, but also offered straight 40-weight oil. We had free Texaco road maps, as we were on a US-route.

 

[Grrumpy]

My first car at age 16 was a 1965 Chevrolet Chevelle 2-door with the straight six-cylinder engine and the “three on the tree” manual shift transmission.

My first job at age 15 was working in a Texaco “filling station”. We sold regular and high-test gasoline. We did sell mostly 30-weight oil, but also offered straight 40-weight oil. We had free Texaco road maps, as we were on a US-route.

Remember the original JC Whitney and Honest Charlie catalogs, Car Craft and Rod and Custom and Hot Rod magazines.....pouring over the articles and advertisements....filling out order blanks and getting stuff delivered C.O.D. ???
And, how many of you really know what Ala Kart means.....and not what you get in a restaurant ???

 

[Fastcar]

Remember the original JC Whitney and Honest Charlie catalogs, Car Craft and Rod and Custom and Hot Rod magazines.....pouring over the articles and advertisements....filling out order blanks and getting stuff delivered C.O.D. ???
And, how many of you really know what Ala Kart means.....and not what you get in a restaurant ???

I remember when those mags were the size of a prayer book. Do you say that with the southern accent? Ok, I'll bite, wtf does it mean???

 

[Grrumpy]

I remember when those mags were the size of a prayer book. Do you say that with the southern accent? Ok, I'll bite, wtf does it mean???

1957....Ala Kart named the most beautiful roadster. Built by George Barris. One of the first AMT model car kits I built in that year...
But, surly you know "Rat Fink" !!!!!

 

[Fastcar]

1957....Ala Kart named the most beautiful roadster. Built by George Barris. One of the first AMT model car kits I built in that year...
But, surly you know "Rat Fink" !!!!!

Of course!

 

[DieselMonk]

Trying to follow this! But my brain has absolutely no clue! Like WTF!?

 

[Grrumpy]

Trying to follow this! But my brain has absolutely no clue! Like WTF!?

Called "going off topic and having fun" !!!

 

[Fastcar]

Called "going off topic and having fun" !!!

Kids!!