HELP... M45 falling apart

[vgmogul]

Ok, I've done some searching and my problems seem common. I have the typical oil consumption and the cold rattling.

I'm really starting to worry about some things because my 03 M45 runs like an old beat up dodge or something. When I get on the throttle it feels like a slipping clutch (bad torque converter?) the RPM's build fine and the engine picks up but the car doesn't really move like it used to or should. It also makes a whistling sounds and sounds like it struggles and has some sort of exhaust leak. It does this and fights to build speed and once things finally seem to line up it finally starts to accelerate feeling like it's using every bit of energy on making the thing move.

It seems to run smooth but it eats oil, rattles like crazy from what sounds like the exhaust when cold, and struggles and makes a whistling sound under acceleration.... it also seems to get worse gas mileage.

Any thoughts?

[szh]

Welcome to NICO!

Sounds like it is time to get a competent tech to look at the car. In the meantime, a session of BG-44K may do wonders ...

Z

[DELUNASC]

Z, Whats the story with the BG - 44K treatment? Is this an additive I can add my self? Where do you purchase?

Thanks for your help, CD

[ClutchKick]

cat may have broken apart and plugged up the exhaust?

[sr79labrat]

That sounds like a good place to start!

[szh]

Whats the story with the BG - 44K treatment? Is this an additive I can add my self? Where do you purchase?

Thanks for your help

There are multiple sources. You can contact http://www.everythinginfiniti.com (ask for Joe Tsensky) and get it from them.

Another source is eBay - pick somebody who has lots of positive feedback on sales of BG-44k. By the way, do not confuse this item with other products from the same company! You should be able to get it for about $12 to $14 a can (it is 11 ounce of liquid in a metal can) plus shipping.

Then, the procedure is simple:

1. Go to a gas station when you have less than half a tank of gas or so.

2. Using a long (or flexible spout) funnel, pour in one can (11 ounces) into the gas tank. Be careful about the funnel you use - some will not tilt enough to allow the liquid to go into the tank!

3. Immediately fill up the car with premium gas.

4. Go for a long drive (ideally). If you do not have the opportunity to take a long drive, that's okay ... this is not critical to do - just do your normal driving.

5. Let the tank get really low before you fill up again! Do not dilute the BG-44K treated gas with untreated gas too soon, in other words!

6. Repeat only once with the very next tankful if the treatment has not cleared up the issues with your car and engine ... you should not do more than one or two BG-44K treatments every 3000 miles. But, doing it every 3000 miles is a good idea!

If the BG-44K treatment does not work, then you may need to get an injector rail flush (remember to ask the dealer to do the powered rail flush, not just another treatment with the Nissan equivalent of BG-44K!)

Some people also like to do this BG-44K treatment a few hundred miles before an oil change (i.e., a couple of tankfuls of driving), but I have not found this to be particularly required per se. I do not know the value of this point ...

Note that the Chevron Techron additive product, even in the "concentrated" bottle sold in typical auto parts stores, is not as good as BG-44K. No comparison in quality whatsoever. Do not get fooled into buying that as an alternative!

However, note that Chevron gasoline, with Techron additive, (and probably also the new Shell gasoline - I do not know the additive they use) is an excellent gas to get for your car. In many cases, a regular diet of Chevron 91 will remove/reduce many performance ailments!

Z

[Q45tech]

Obviously you haven't been visiting the dealer every 90 days [oil change] to have things attended to under warranty. That's their job to find things to get Nissan Warranty to pay to replace.

When I got my first Q back in 1990 I was at dealers every 30 days for years over $13,000 worth of things were replaced free and then my extended warranty cranked up replacing another $8,000 prior to 100k.

[szh]

Obviously you haven't been visiting the dealer every 90 days [oil change] to have things attended to under warranty. That's their job to find things to get Nissan Warranty to pay to replace.

When I got my first Q back in 1990 I was at dealers every 30 days for years over $13,000 worth of things were replaced free and then my extended warranty cranked up replacing another $8,000 prior to 100k.

Who, me? I always go to the dealer for the 7500 mile work - it is just the in-between oil changes that I do elsewhere. My Service Manager is cool with that - although I suspect having bought three Infiniti's from them in the past 17 years may have something to do with the excellent service I get from them!

Dennis, I seem to recall that you were the person who mentioned doing an oil change shortly after the BG-44K treatment. Can you elaborate on the reasons for that please?

Z

[Q45tech]

No not you the original topic poster whose is ALLOWING his car to fall apart.

The detergents and solvents in BG44k might attack the ring oil film and change the viscosity of oil. The same when you fog the manifolds or clean the fuel rails......................the gunk might get in the oil and not be blown out the exhaust valves.

Oil changes are so inexpensive compared to repairing any damage, kind of like using mouth wash after you brush to wash away all the loose gunk.

You can never do too many oil changes.

I'm proud to have used [circulated] 120 gallons of oil almost 3 barrels in 17 years....................85% of which has been ultimately recycled!

[myother45isalesbaer]

I am new to the site....but I am wondering if you are running premium fuel. They just will knock and do all kinds or weird things if you don't. I also had an oil consumption issue with my 2004 M45. I had to get the synthetic oil out of it and good back to regular oil. No problems since then.

[szh]

The detergents and solvents in BG44k might attack the ring oil film and change the viscosity of oil. The same when you fog the manifolds or clean the fuel rails......................the gunk might get in the oil and not be blown out the exhaust valves.

Oil changes are so inexpensive compared to repairing any damage, kind of like using mouth wash after you brush to wash away all the loose gunk.

Got it. I did my last BG-44K treatment about 600 miles (about two tankfuls of gas worth) before my next oil change is due, so ... I think I am okay.

You can never do too many oil changes.

Yup!

I'm proud to have used [circulated] 120 gallons of oil almost 3 barrels in 17 years....................85% of which has been ultimately recycled!

You know, I had never thought of it quite that way! Hmmm ... since 1991, in my three Infiniti's, I have driven about 250k miles, with oil changes every 3750 miles. So, for me, the number is less ... about 100 gallons of oil! Wow!

Z

[szh]

I am new to the site

Welcome to NICO!

but I am wondering if you are running premium fuel. They just will knock and do all kinds or weird things if you don't. I also had an oil consumption issue with my 2004 M45. I had to get the synthetic oil out of it and good back to regular oil. No problems since then.

Agreed with your premium fuel point. On my 2003 M45, I always run the 91 octane that we find here in California.

But, on my 2003 M45, I use Mobil 1 0W-40 Full Synthetic ... switched to it at about 7500 to 10k miles. I consume very little oil in my engine compared to some of the reported problems ... I attribute this low usage to proper engine break-in.

But, like I always say, changing the oil frequently enough is far more important than whether you use synthetic oil or dino oil (as long as it is good dino oil).

Z

[(V)erciless]

AMSOIL or Royal purple FTW!