Whats the usual cost to replace the platinum plugs? I've been told its a very expensive job :wtf:

35 each if i remember right

I did the plugs / Timing belt at the 105000 km service. All aup cost was just under a grand from my mechanic. The dealers will charge close to double that.
Plugs from the invoice $300.S/F

35 each if i remember right

You gotta be joking, it's $12.50 each delivered.

Ebay
http://cgi.ebay.com.au/NGK-Platinum-Spark-Plugs-G-Power-Platinum-Cheapest_W0QQitemZ180376007410QQcmdZViewItemQQptZA U_Car_Parts_Accessories?hash=item29ff3f72f2&_trksid=p3286.c0.m14&_trkparms=65%3A1|66%3A2|39%3A1|240%3A1318|301%3A1| 293%3A1|294%3A50

I hear the fronts are easy but the backs are tricky?

yeah thats why dealers charge an arm and a leg

can be tricky and costly in labour as the inlet manifold has to come off

and if you are changing the back ones your better off doing the rocker gasket at the same time saves pulling it off later down the track unless you do it yourself

35 each if i remember right
I paid $38 for a set of 6 Bosch plugs...

You gotta be joking, it's $12.50 each delivered.

Ebay
http://cgi.ebay.com.au/NGK-Platinum-Spark-Plugs-G-Power-Platinum-Cheapest_W0QQitemZ180376007410QQcmdZViewItemQQptZA U_Car_Parts_Accessories?hash=item29ff3f72f2&_trksid=p3286.c0.m14&_trkparms=65%3A1|66%3A2|39%3A1|240%3A1318|301%3A1| 293%3A1|294%3A50

anyone tell me the standard heat range no. for a 3.8 in these? thanks.

anyone tell me the standard heat range no. for a 3.8 in these? thanks.

The stock plugs are Bosch R6 Iridium.

The stock plugs are Bosch R6 Iridium.

ok, do you know what the NGK platinum equivalent is? i wanted to order some over e-bay.

ok, do you know what the NGK platinum equivalent is? i wanted to order some over e-bay.

Not 100% sure but I have NGK Iridium 7 installed with my supercharger which were one range colder, so NGK Iridium 6?

Results from NGK Australia shows it's NGK Iridium BKR5EIX-11 for the 3.8L 6G75

http://www.ngkspark.com.au/sparkplug_cars.php?PageMode=Results&Make=Mitsubishi&Model=380&Year=10%2F05on3.8L6G75

thank's fella's, its NGK G- Power Platinum BKR5EGP.

thank's fella's, its NGK G- Power Platinum BKR5EGP.

Zero, the stock plugs I pulled out when I did the supercharger are actually iridium not platinum.

yeah Fooz they would've been, BKR5EIX-11.

Feed-back, Platinum plugs arrived from Melbourne within 48 hrs by Registered post. $75 all up. This mob also sell oil's etc. too. Performancelub.com

Wow, 48hr is fast. I'm currently using Amsoil 5w30 from him and it gives my 380 the best FC it even seen. I'm very happy with the performance of Amsoil oil indeed.

Wow, 48hr is fast. I'm currently using Amsoil 5w30 from him and it gives my 380 the best FC it even seen. I'm very happy with the performance of Amsoil oil indeed.

yes, i'm gonna grab some 10w40 from him.

Feed-back, Platinum plugs arrived from Melbourne within 48 hrs by Registered post. $75 all up. This mob also sell oil's etc. too. Performancelub.com

Zero I'm a bit confused. Your profile says you have a 3.5 Magna but you wanted to know the heat range of the 3.8 & bought platinum plugs while the 3.8 takes iridium??

Zero I'm a bit confused. Your profile says you have a 3.5 Magna but you wanted to know the heat range of the 3.8 & bought platinum plugs while the 3.8 takes iridium??

Yes mate they're a present.
Prefers platinum to iridium for the particular application and also 1 heat range cooler. :happy: