If there isn't any engine pinging, is there anything else that could cause a problem from using gas that is lower than specified by the manufacturer? I see a lot of threads in various places questioning whether it's ok to use a lower octane gas in an engine that the manufacturer specifies using a high octane gas. Modern engines make adjustments for lower octane. If there isn't any pinging, is there anything else that could cause a problem from using lower than specified octane gas?
For modern day fuel injected engines, when the engine detects ping or pre-detonation, it pulls timing. When this happens, the engine loses power. There's a couple of things, though. The ECU can only pull so much timing and have the engine continue to run. When you get to this limit, damage may ensue. A large problem with ping is, you won't notice it but in the most severe cases. If you're running and ping is occurring, you could be causing damage to your engine and never know it until something catastrophic happens.