Nissan PR25DD (PR family, 2.0 and 2.5)
2.5 L · inline-4 · naturally aspirated · petrol · 2018–present
Also known as: pr25dd, pr25, 2.5 pr, altima 2.5 pr, pr20dd, pr20
Nissan's 2.5 four — in the Altima and, through the alliance, in the Mitsubishi Outlander.
It replaced the long-running QR25DE and is a different engine rather than a development of it: direct injection, a higher compression ratio, and a mirror-bore cylinder coating in place of liners.
⚑ That coating is the thing to know before any machining decision. The bores are plasma-sprayed rather than lined, so a conventional rebore is not available — an engine with bore damage is a different economic question from one with liners.
It is direct-injected, so intake-valve carbon accumulates with mileage because no fuel washes over them, and a rough idle or a misfire at mileage is a cleaning question before it is anything else.
Its appearance in a Mitsubishi is the alliance rather than a coincidence, and Nissan documentation is what applies — which is worth knowing, because searching the Outlander finds very little.
It is too new for a settled long-term record.
Cars fitted with this engine
3 generations, across 2 makes. From the authored catalogue — an absent car means the catalogue has not reached it, not that the engine was never fitted.
Mitsubishi
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