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Oil questions...

Fabulous

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To the best of my knowledge No oil is going to give spotless spark plugs , especially after 500 hours of continuous use
 

Motorka

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Isnt lifetime of a sparkplug 100 hrs ?
 

bwalker

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Its funny how much residue all oil choices except for ultra have.....

Especially slide with sparkplugs....

Amsoil @1:100 has the same deposits as mineral HP or Echo blend @1:50

LoL.....
Its a complete BS test, but in a extended time full throttle test in a four stroke motor I would expect an ashless oil to do better.
Any application that entails extended constant throttle uses ashless oils. Think boats, airplanes, rail road engines, etc.
 

pbillyi69

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i looked up spark plug in one of the chainsaw user manuals and it does say to change the plug every 100 hours or annually if in commercial use
 

Wilhelm

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i looked up spark plug in one of the chainsaw user manuals and it does say to change the plug every 100 hours or annually if in commercial use
I only ever change spark plugs on new to me used saw purchases to NGK if there isn't one in them, then never worry about them again.

Just saying.
 

bwalker

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I only ever change spark plugs on new to me used saw purchases to NGK if there isn't one in them, then never worry about them again.

Just saying.
Most people dont put enough hours on their saws to wear out a plug.
For a commercial guy once a year is probably adequate.
If you run a plug too long the gap opens up and it kills the coil. Same thing happens on cars and trucks.
 

pbillyi69

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I only ever change spark plugs on new to me used saw purchases to NGK if there isn't one in them, then never worry about them again.

Just saying.
i havent ever had to change a spark plug because it was used up in any saw or other handheld yard tools. i ran my 372xpw daily for many years
 

lilspenny

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i havent ever had to change a spark plug because it was used up in any saw or other handheld yard tools. i ran my 372xpw daily for many years
In 18 years of landscaping I had three sparkplugs that totally quit working and a couple that were very weak. I did replace all plugs every off-season because I didn't want a surprise. All of those bad or dead plugs came within the last ten years. Counterfeit?
 

pbillyi69

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plugs in general have gone to the birds in quality and reliability.. i have a 18.5hp vanguard in my golf cart and i cant make a whooe year without changing the plugs and i only buy ngk because they last the longest. champion are second. they dont stop completely buy they get crappy spark that is not solid bright blue. theh become dim and barely spark. its not the coils either because a new plug makes a good solid blue fire
 

drumbum

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plugs in general have gone to the birds in quality and reliability.. i have a 18.5hp vanguard in my golf cart and i cant make a whooe year without changing the plugs and i only buy ngk because they last the longest. champion are second. they dont stop completely buy they get crappy spark that is not solid bright blue. theh become dim and barely spark. its not the coils either because a new plug makes a good solid blue fire
Resistor plugs?

Seems to have been a move that everything requires an R plug. I think I prefer the required resistance in the connector in automotive/4T apps.
 

bwalker

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plugs in general have gone to the birds in quality and reliability.. i have a 18.5hp vanguard in my golf cart and i cant make a whooe year without changing the plugs and i only buy ngk because they last the longest. champion are second. they dont stop completely buy they get crappy spark that is not solid bright blue. theh become dim and barely spark. its not the coils either because a new plug makes a good solid blue fire
I'd stop looking at them. If the engine starts and runs you are good.
 

bwalker

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I’m convinced that over 95% of name brand plugs that are replaced aren’t bad. But it is such an easy fix for the few times that they are bad that it’s not worth risking an old plug.
I think a lot of the problems with new plugs are counterfeits.
Exactly. I haven't fouled a plug in decades.
I only buy NGK solid terminal plugs from Napa.
 
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