Hey guys, I have been seeing on tv commercials about some stuff that restores the engine compression. I dont want to buy it and it be a big fluke. My engine has 155000 miles on it, so I am guessing that it has probably lost compression. Where can I get a compression test done on my engine, and how much do you think it would cost? Does the engine restore really do that much good? Thanks for all advice.


98z24, lowered 2", aem intake, cat-back striaght pipes!, cop ligths in the front and rear, 18" liquid metal's, primer black, tint, full audio and video.

I only test compression if i am trying to diagnose a problem.....

The restore stuff does very little to help out your car, but i dont think it really hurst it either.

You can buy a compression tester for less than somewhere would charge you though.

Hmmm... Thanks... I'll check aorund on the net and tomorrow see how much a shop wil charge. I can only imagine the scratches in the cylinder walls after 155000 miles! I just want my j to run as good if not better than the day it was brand new.


98z24, lowered 2", aem intake, cat-back striaght pipes!, cop ligths in the front and rear, 18" liquid metal's, primer black, tint, full audio and video.

matthew christian wrote:Hmmm... Thanks... I'll check aorund on the net and tomorrow see how much a shop wil charge. I can only imagine the scratches in the cylinder walls after 155000 miles! I just want my j to run as good if not better than the day it was brand new.

shouldnt be any scratches unless it was run without oil for a while.



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I thought cylinder wall scratches is what makes you loose compression? And do you really think I have low compression? What is the stock compression for an ld9 anyway? I just want to keep everything in good working order. I pan to keep this car for a while.


98z24, lowered 2", aem intake, cat-back striaght pipes!, cop ligths in the front and rear, 18" liquid metal's, primer black, tint, full audio and video.

No, cross-hatch style scratches help new rings to seat, lack of "hatch" & worn-out rings cause loss of compression. And if you have vertical scratches, it's rebuild time!


Go beyond the "bolt-on".

oh, ok.... I dont think I will ever get to see if my z has vertical or hatch scratches, but if I ever do, I will use that info, so thanks. I am going to pt the engine restore in my fuel tuesday after I get paid so I can afford a full tank of gas! LOL!


98z24, lowered 2", aem intake, cat-back striaght pipes!, cop ligths in the front and rear, 18" liquid metal's, primer black, tint, full audio and video.

What!? NO!!! Restore doesn't go into the fuel tank! It's added to the engine oil, preferably when it's changed. Putting it in the tank will make the gasoline like 2-stroke fuel, and your engine will definately not like that!

Boy, you are new to automotive stuff, aren't you? Relax... Just sit down, pick-up the seasonal course listings for your local community/county college, locate the automotive-related courses & sign yourself up. Start at the bottom & work your way up, read as many automotive related periodicals & articles (Magazines) that you can that relate to type of stuff you're interested in building and you'll be up to speed. Then you can come here & share in what all we know and share whatever you may know that's helpful to you & others. Okay? Good....


Go beyond the "bolt-on".

ok, I have only seen it on commercials and ASSUMED I added it to the fuel. You didnt have to let your inner child out and go on about me not knowing what I am doing. I am a minitrucker at heart, and I am not too familiar with engine knowledge. That is why I asked a question, not giving an answer.


98z24, lowered 2", aem intake, cat-back striaght pipes!, cop ligths in the front and rear, 18" liquid metal's, primer black, tint, full audio and video.

So, get knowledgeable!


Go beyond the "bolt-on".

matthew christian wrote:ok, I have only seen it on commercials and ASSUMED I added it to the fuel. You didnt have to let your inner child out and go on about me not knowing what I am doing. I am a minitrucker at heart, and I am not too familiar with engine knowledge. That is why I asked a question, not giving an answer.

or just read the can that the engine restore comes in



Im a Xbox 360 fanboy...and damn proud of it!!

If your car isn't consuming an unusual amount of oil (say, more than .5 quarts per 1,000 miles), then I wouldn't be concerned about adding ANYTHING to the oil. There's no magic "mechanic in a bottle" elixir out there that can undo damage that's already done. A thicker oil could potentially help to improve compression in a worn engine by helping to provide a thicker barrier at the rings, but that could work against you in other ways, as it requires more energy to pump, and flows more slowly than the "recommended" viscosities.

In general, it isn't worth playing "chemist" with additives in your car. Any current oil that you buy is already a fairly complex blend of base oils and additives that are engineered to work together. There may be a couple of application specific exceptions out there, but typically you are fairly unlikely to see anything beneficial from putting in non-standard additives into your oil. If you look in the owner's manual for your car, you will also see that GM recommends against it also.

The best thing you can do is change your oil regularly, and treat the car with respect. If you do that, you could potentially drive the car until you're thoroughly bored with it. Most cars will last as long as you want them to, as long as the body stays intact. I read somewhere once that "Cars don't die - people kill them.". I think that this is very true - people just give up once they reach a certain mileage, stop paying attention to maintenance, and then things wear out.

Just stick to the recommended maintenance, and don't let those infomercials "suck you in". Many years ago I got convinced to try a similar product on my car and my brother's. Seems strange that both engines, which hadn't indicated any signs of problems PRIOR to the additive, both suffered major ring failure within 1 year. Coincidence - I think not. I had a teacher who once also "believed" in such a product, and strangely enough he also had the kids doing a ring change in his car at the school after a while...

Hope this helps a little on the "knowledge" side for oil additives...
John

I'd say it does, but then I already know all that (Not bragging, just saying).


Go beyond the "bolt-on".