986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - What sparkplugs does everyone reccommend?

deliriousga · 07-18-2005, 07:39 AM

I used the Bosch Platinum +4. Since that is what the dealer used the first time they were changed, I figured those were stock. They have been great and one of the forums Tool Pants listed confirms the dealer uses both Beru and Bosch.

Be careful messing around with it, though. Porsches are picky. The 928 was made to use a specific copper plug and does not run as well on the platinums and can be damaged by them, no matter how expensive. Personally, I'd stick with stock.

EDIT: Make sure you're using the right heat range plug and not just the +4 you can pick up at Auto Zone.

07-18-2005, 07:39 AM	#5
deliriousga Registered User Join Date: Jun 2005 Location: USA!! Posts: 1,159	I used the Bosch Platinum +4. Since that is what the dealer used the first time they were changed, I figured those were stock. They have been great and one of the forums Tool Pants listed confirms the dealer uses both Beru and Bosch. Be careful messing around with it, though. Porsches are picky. The 928 was made to use a specific copper plug and does not run as well on the platinums and can be damaged by them, no matter how expensive. Personally, I'd stick with stock. EDIT: Make sure you're using the right heat range plug and not just the +4 you can pick up at Auto Zone. __________________ 1987 928S4 Silver Metallic (980)/Navy (TP) 5-Speed 2000 Boxster Speed Yellow/Black 5-Speed 1966 Wife White/Brown Top 1986 Daughter White/Brown Top (Sold!) 1992 Daughter White/Blonde Top Last edited by deliriousga; 03-14-2006 at 01:18 PM.