I usually use NGK or Denso copper plugs for my vehilces. But, my Mom now lives 3 hours away and when I do the job at 30k I don't know if I will be able to hit the next change at 60k. Should I put NGK or Denso Platniums in it?

I would chose NGK, double platinium - or Iridium. Either is "expensive" like around $12...per piece, but they will last.

 

A set of NGK "V groove" will also last 30k miles, but of course if you want something that lasts longer...

NGK Plat.. yup.. about $12 a piece.. I found 'em for $10.50 by shoppin around

Thanks, I found Denso Double Plat. for $6 a peice online.

Anybody put Plat. or Ird. in there SOHC EJ253 yet??

It's nice to see people doing things to help their parents out. Just make sure that your/her car uses plat. plugs or non plat. or regular old plugs. My former 97 Outback was platinum only. My 03 FOrester is regular plug only. I was told not to use platinum plugs in it, so I didn't. I just put in the Denso plugs at 1.87 a piece,and it runs beautifully.

OK, I only had three hours so I changed the coolant in her '03 GT with that universal yellow stuff they are selling now mixed with distilled water. When I opeaned the cap there was this redish stuff all over the cap, the bottom of the overflow tank. Whe I flushed the rad with watter this stuff came out as well. I wonder if it was SOA factory isnstalled "magic treatment for phase I EJ25's"? Anyway I put Prestone water pump lube and cooling system treatment.

 

Buddythe dog thanks for "Just make sure that your/her car uses plat. plugs or non plat. or regular old plugs. My former 97 Outback was platinum only.!" She had WORN "Crap"ion spark plugs in it stock. I swaped them out for with the regular Denso's. My Mom says she thinks it feels peppier! Why would they put these junk plugs in a Subaru, at 30k there gap was DOUBLE what it was suppose to be! If it's this hard on plugs CAN I go to the plat.plugs in the EJ253?

 

I also replace the fuel filter with the Purolator. and changed the oil and filter.

 

That was all the time I had so next time I am down it's ATF drain and refill, front and rear diffs, and brake fluid flush bleed.

Please keep an eye on the coolant for a while. Mixing types can lead to problems with the stuff thickening up. If you rinsed/flushed well, you should be okay.

 

Plat plugs should work fine. Make sure you get double plat, though. The ignition system fires a blank in the opposite direction during the exhaust stroke.

The Yellow ALL Coolant/ All Makes stuff is the ONLY thing you can buy at Wal-Mart anymore Prestone does not even sell teh green stuff anymore just the all purpose yellow!