# Use of platinum plugs in my truck **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [March 18, 2008, 5:01pm UTC](https://community.cartalk.com/t/use-of-platinum-plugs-in-my-truck/11951 "2008-03-18T17:01:38Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![jries007](https://avatars.discourse-cdn.com/v4/letter/j/9d8465/32.png) [@jries007](https://community.cartalk.com/u/jries007)\ **Post date:** [March 18, 2008, 5:01pm UTC](https://community.cartalk.com/t/use-of-platinum-plugs-in-my-truck/11951/1 "2008-03-18T17:01:38Z")
The dealer tells me that replacing the factory sparkplugs with platinum plugs will not work in my 2006 Dodge 1500 Ram truck w/ 4.7V8 because the voltages are incorrect. True or False? ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [March 18, 2008, 5:05pm UTC](https://community.cartalk.com/t/use-of-platinum-plugs-in-my-truck/11951/2 "2008-03-18T17:05:57Z")
2006 should have irridium plugs. They’re better than platinum, about 8x harder and thus they erode less. Use the listed OEM replacements. ---
**Author:** ![MikeInNH](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@MikeInNH](https://community.cartalk.com/u/MikeInNH)\ **Post date:** [March 18, 2008, 5:08pm UTC](https://community.cartalk.com/t/use-of-platinum-plugs-in-my-truck/11951/3 "2008-03-18T17:08:08Z")
If a spark plug company makes a Platinum plug for your vehicle it will work fine. The question is…why are you changing??? Don’t expect any better performance. The ONLY advantage to platinum is they last longer…PERIOD. ---
**Author:** ![SteveF](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/stevef/32/2_2.png) [@SteveF](https://community.cartalk.com/u/SteveF)\ **Post date:** [March 18, 2008, 5:14pm UTC](https://community.cartalk.com/t/use-of-platinum-plugs-in-my-truck/11951/4 "2008-03-18T17:14:46Z")
Copper, platinum, iridium… all will work and will work just about as well as each other. The chief difference is the longevity of the spark plugs. All the various acceptable types should be listed in your owner’s manual, and auto parts stores have cross-reference tables for what you can use. ---
**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\ **Post date:** [March 18, 2008, 5:51pm UTC](https://community.cartalk.com/t/use-of-platinum-plugs-in-my-truck/11951/5 "2008-03-18T17:51:14Z")
I would stick with what the owner’s manual list. Dealers are usually poor sources of information. The fact is all types would likely work just fine, but some would last longer (and cost more) than others. ---
**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\ **Post date:** [March 18, 2008, 7:14pm UTC](https://community.cartalk.com/t/use-of-platinum-plugs-in-my-truck/11951/6 "2008-03-18T19:14:24Z")
The voltages are incorrect?? In a word, no. ---
**Author:** ![cappy208](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cappy208/32/31_2.png) [@cappy208](https://community.cartalk.com/u/cappy208)\ **Post date:** [March 18, 2008, 7:33pm UTC](https://community.cartalk.com/t/use-of-platinum-plugs-in-my-truck/11951/7 "2008-03-18T19:33:19Z")
but the dealer said so!!! more reason to doubt the dealership