Nordrel

I just recently purchased a 2008 v6 Mustang with the 4.0L and I wanted to know how reliable the engine itself is. I bought it with 94k Miles. just let me know what you guys think.

Rudolph Hucker

they say 300k miles is possible..

So_Cali

Gonna sound like a broken record but, it all depends on how well it was taken care throughout those 94K. Hopefully she came with maintenance records on any services perfomed on the car. The 4.0 is a pretty solid engine, I'm at 135K still going strong with no major issues (knock on wood)

tigercrazy718

this would prob be better in the v6 specific section, but ppl have run superchargers on their engines well past 100k, along with nitrous past 100k. all depends on how well you take care of it and it was taken care of

kput

They're great engines..
I've heard of them handling pretty high level of boost too

kzonts

Mine has responded well to the boost, but I only have 51k on the motor. Has some nice torque for a v6. It was a slow pig before that. :-)

Speed Buggy

Probably something to ask BEFORE you buy

JimC

The 4.0 is a very strong engine.

I ran a 75 shot of nitrous on my 2006 for 2 seasons. At 90,000 miles I pulled the nitrous and installed the Xcharger (Dave at Explorer Express said it was the highest mileage initial install he knew of at that time).

When I sold the car after ordering the 2013 it was still running strong on 10-12 lbs of boost, making mid 12 second passes, and had 203,000 miles on it. The new owner said the compression tested fine and he is planning to take it to the track this upcoming season.

Nuke

I'd expect some minor issues such as accessories failing but overall the 4.0 is a pretty tough engine. Ford seems to skimp on the accessories.

kzonts

I'd say this is enough proof to confirm the reliability! Your experience made my decision to boost much easier. Hopefully I'll have the same results.