The Middle Chinese entering tone has a different distribution in the Luoyang dialect than in Standard Mandarin. (See entering tone for more.)
Tone contours are different from those in Standard Mandarin.
The retroflex and alveolar fricatives are found in different distributions: retroflex fricatives in Standard are often fronted to alveolar fricatives in Luoyang.
The distinction between /w/ and /v/, lost in Standard, is maintained in Luoyang.
The retroflex series is less retroflexed than in Standard Mandarin and slightly further forward.
Standard final /œ/ and /ɑu/ are often backed to [ɔ] in Luoyang. For example, 学 (Standard [ɕɥœ̌]/[ɕɥě], to learn) is [ɕɥɔ], and 角 (Standard [tɕjɑù]/[tɕjàʊ], horn) is [tɕɥɔ].
Standard final /əi/ is pronounced [ɯ] or [i] in certain environments in Luoyang.
Standard final /n/nasalizes the preceding vowel in the Luoyang Dialect.