Results 1 to 4 of 4
Thread: Spark Plugs?
03-06-2010, 11:01 AM #1
- Join Date
- Mar 2010
I changed the spark plugs in my 04 Sierra with a 5.3 70000. I put autolite platinums in it but originals were Iridiums. I didnt realize it took Iridiums untill looking at them after changing all of them.
Anyone see any problems with this? Or should it be fine?
03-06-2010, 11:42 AM #2
No sir, i have a friend with platinum's in his truck. Doesn't notice any difference?
Last edited by ippielb; 03-06-2010 at 11:49 AM.
www.youtube.com/ippielb 2002 Chevrolet Silverado 1500 z71 1985 Chevrolet Silverado k10 2006 Chevrolet Silverado 2500hd 6.6l LLY Duramax 6.5" BDS Suspension Lift Edelbrock Carb & Polished Intake Manifold & Valve Covers NAPC Race Transmission & NAPC Built Transfer Case EFI Live Comp Cam and Valvetrain Snow Performance Methanol Injection 35" Toyo Open Country Mud Terrain on 18" Ion Alloy 179's Headman Long Tube Headers and True Dual Exhaust FASS 150gph Titanium Series Pump AirAid Cold Air Intake with K&N Dry Filter & AirAid PowerAid Throttle Body Spacer 2" Suspension Lift 33x12.50r15 Tires EFI Live & AFE Stage 2 Intake Pacesetter Long Tube Headers with Cats Gone True Dual Exhaust FlowPro 3.73 Gears Yukon Grizzly Locker with Mag-Hytec Cover & Traction Bars NGK Iridium Tips & MSD Ignition Plug Wires Baja Spare Tire Holder 33x13.5 Hankook rt03 18" XD Rims Innovate LC-1 Wideband o2 Sensor x2 HID's all around LED taillights and 3rd brake light BDS Dual Steering Stabilizers Pioneer Double-DIN Touchscreen Navigation with Two 10" Subs under rear seat Electric Fan Autometer Pressure, Boost, and Pyro Gauges 4.56 Gears Airlift Air Bag Suspension
03-06-2010, 12:21 PM #3
I use Bosch Platinum 4's and really like them1995 Silverado,Z71, 3-inch lift,2-inch leveling kit, SkyJacker Suspension, short ram-air intake, throttle body spacer, MSD ignition coil, straight pipes
03-06-2010, 12:29 PM #4
- Join Date
- Feb 2010
- Soggy Western Oregon
There are a few reasons manufacturers are switching to Iridium from platinum,
Longer Service life, less load on the ignition system, and more efficient combustion.
You may see a decrease in economy, though it will be small. Iridium is much harder than platinum, and has a much higher melting point. That means the platinum plugs aren't going to last nearly as long as the Iridiums.
I've heard opinions concerning the smaller Iridium electrode in reference to "Hot Spots" in the combustion chamber. Smaller hot spots are less prone to detonation. That means your computer may be able to carry a bit more timing. Therefore potentially even better economy and power running Iridium plugs.
Platinum plugs were the top of the line for a long time, and will work very well. Your not going to damage anything by running them unless you have a weak ignition.
By doss in forum Maintenance & UpkeepReplies: 15Last: 08-06-2010, 01:10 PM
By jason778 in forum GM PowertrainReplies: 3Last: 03-22-2010, 07:05 PM
By z71Hauler in forum GM PowertrainReplies: 9Last: 03-20-2010, 08:31 AM
By AUSTING64 in forum Performance & FuelReplies: 8Last: 01-01-2010, 03:32 PM
By 4x4_only in forum Performance & FuelReplies: 1Last: 08-12-2008, 08:58 AM
Tags for this Thread