>> If you're at $5,000/month, a 4.2% raise puts you at $5,210. If you're spending $600/month on gas (not unreasonable for someone that drives an SUV and lives in the suburbs instead of in the urban core), you still come out behind.
This is the problem with people treat CPI as some word from the heavens...it is not. CPI is a highly constructed figure which conveniently includes/excludes things and is really more a floor of what the inflation is. Anyone living in the real world knows experienced inflation is way higher.