240K Miles Still Running Strong!
Hi Guys,
So I just bought My 1st ( 4th Gen) 3.4 V6 AUTO. I purchased it from the original owner, who bought it new in 1994. The car has been very well Maintained, over the last 20+ Years. The previous owner claims the engine and transmission has NEVER been rebuilt. Are 3.4's known to last over 240K miles? No smoke, no leaks, no check engine light. Transmission performs well as far as I can tell. (No slips, or delayed shifts) Is this rare, or common to see?
So I just bought My 1st ( 4th Gen) 3.4 V6 AUTO. I purchased it from the original owner, who bought it new in 1994. The car has been very well Maintained, over the last 20+ Years. The previous owner claims the engine and transmission has NEVER been rebuilt. Are 3.4's known to last over 240K miles? No smoke, no leaks, no check engine light. Transmission performs well as far as I can tell. (No slips, or delayed shifts) Is this rare, or common to see?
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Miles are a terrible way to measure the life of a car, I know it is the only way we have right now, but hours would be a better but still not perfect.
Example:
2 guys drive 30 minutes to work.
Guy one drive 8 miles. He starts and stop 25 times and never gets into 4th gear.
Guy to drive 32 miles almost all highway miles. He stops 3 times.
10 years later. Guy Ones car has 36,000 miles and Guy two's car 144,000 miles. Guy ones car is worn out Guys 2 car has gone through 3 sets of tires and a sets of wheel bearing but everything is near new condition.
Its getting the car moving and stopped that cause wear. Cruising a 70 MPH the engine is putting out less then 35HP. Jack rabbit starts are the worst. If all you did was race 1/4 in a new car you would be lucky to hit 6,000 miles before a failure.
Maintaining a car is also important also. Most people know about changing oil but a improperly maintained coolant system will cause an engine to run hotter long before it causes over heating. this hotter running running engine is seeing more wear. Also the coolant will turn acidic over time and will eat away gaskets and even Aluminum.
I have seen many fleet cars hit a half a million miles. They follow a very strict maintenance schedule.
Example:
2 guys drive 30 minutes to work.
Guy one drive 8 miles. He starts and stop 25 times and never gets into 4th gear.
Guy to drive 32 miles almost all highway miles. He stops 3 times.
10 years later. Guy Ones car has 36,000 miles and Guy two's car 144,000 miles. Guy ones car is worn out Guys 2 car has gone through 3 sets of tires and a sets of wheel bearing but everything is near new condition.
Its getting the car moving and stopped that cause wear. Cruising a 70 MPH the engine is putting out less then 35HP. Jack rabbit starts are the worst. If all you did was race 1/4 in a new car you would be lucky to hit 6,000 miles before a failure.
Maintaining a car is also important also. Most people know about changing oil but a improperly maintained coolant system will cause an engine to run hotter long before it causes over heating. this hotter running running engine is seeing more wear. Also the coolant will turn acidic over time and will eat away gaskets and even Aluminum.
I have seen many fleet cars hit a half a million miles. They follow a very strict maintenance schedule.
Last edited by Gorn; Nov 7, 2017 at 11:45 AM.
Very Well Said. The"type" of miles certainly make a huge difference! I know the 3.4 Is "hated" mainly for being a V6 and sub 200 H.P. ( I totally get that) I'm curious to what other 3.4 owners are seeing (Miles) before engine failure. I know the 3.8 is a GREAT engine. My GTP lasted past 300K, until my lil bro blew it up.
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