In my current DD is a d15z1, still getting great MPG but has about 375xxx i know these motors can go up to 500k + but i'd rather not see that happen. Id like to know is it worth just rebuilding it and keeping the great MPG or just swap in another motor with less miles. Suggestions??

 

I say run it until it starts having problems, but that's just my opinion.

 

Get the engine compression & leakdown tested. See how healthy it is.

 

Elaborate please, the health of my engine is something i really want to know.

 

This!! See where your motor stands and drive it until it is done. Then rebuild if you can find someone with the knowledge for Honda's. It would be cheaper to replace with another d series motor but I would personally spend the extra cash to save a Z1. The MPG would eventually pay for the added cost.

You can rent a compression and leak down tester at your local parts store. There are plenty of you tube videos that can show you the process of both.

 

Thanks for the help! Motor runs pretty smooth just idles a little weird but other than that i dont see any problems with it other than replacing some gaskets and my valve cover.

 

Where at in Kansas? Just wondering if it was my old VX but it had 276k. Mine had a blown headgasket and still ran strong lol.

 

grumblemarc and speedjunkie have given you excellent advice. Basically, you give the motor a full physical and see how healthy she is. If it's good, then keep on running it til she drops. http://www.autoblog.com/2007/10/01/c...5-honda-civic/

 

Yuuuup Motivation

 

must be a fast motor lol

 

What??? Care to elaborate? Z1 motor is the only motor that when vtec kicks in, you get increased fuel economy compared to the typical performance of other vtecs!!

 

 

You got good advice... take that football and run!

 

If it aint broke...

 

Apart from conducting a leakdown and compression test, I wouldn't touch the motor until it started giving you headaches. Why wouldn't you want to see the motor hit 500,000 miles? I think that would be a great indicator of a healthy and well maintained engine.

 

I would also compare what kind of mpgs you are getting with other vx owners.

 

Also, if the OP is from Kansas then his/her VX should be a "federal" model meaning it has the lean-burn mode as well as the shift indicator light. The fuel economy on these "federal" models is higher than the California models due to stricter emissions laws in California. This is something to keep in mind for the OP if he/she decides to compare fuel economy with another VX.

 

Good job bumping a year old thread, guys.

 

Umm, you might want to check that again!

 

Hmm, you're right, and I'm stupid. My bad. That's what I get for running on two hours of sleep in two days

 

Haha thought you caught us slipping.

 

mileage means nothing. maintenance is crucial, id take a 300k car with service history over a 100k car without.

 

Thanks guys i appreciate everyones comments and inputs, so i've decided i need to do a compression and leak test and hoping my motors condition is in a good shape and yes mine is a federal model VX with a shift indication light

 

damn i guess my sarcasm didnt get to you guys

 

^nope....didnt in your epic megafail closed thread either