What does D4D Stand for?
Answers:
D-4D is Toyota's common rail diesel engine that injects 4 times per stroke into the cylinder to increase efficiency and reduce engine noise.
"D4D" might stand for two things like
1) 4 wheel drive
or
2) 4 doors
This is only a guess but it could be diesel, 4 cylinder, direct injection
diesel
4 cylinder
direct
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