Dedicated LVC Member
- Jun 7, 2004
- Reaction score
- Austin, TX
well now that we are talking about this.. I dont see the fuel causing the coils to go bad.. Maybe if it was a fuel that burned alot SLOWER it could cause the coils to go bad for the fact that the amperage to the coils would have to increase to allow a strong enough spark to over come the plug gap and the cylinder compression and fuel resistances to burn... But i dont see that happening from a fuel that burns faster
again - saying on topic - misfires. the lower octane fuel 'may' be causing his misfires. He 'may' be having a coil issue not related to the octane.
however in post #13 - you seemed you did not grasp why lower octane fuel causes misfires. It seems that you do now.
Now if the mis-fires are bad enough - it could damage the plug - and then the mis-fires is more constant than just fuel octane - but not likely. It's not likely that mis-fires due to lower octane cause coils to go bad - but that is not how this post started. He started with mis-fires, you pointed at coils/gaskets, I pointed at octane, you stated octane can't cause coil issues.... but the real post was about mis-fires...