Which would be preferable? - To run a can of BG44 K through a tank of gas over 7 days of mixed city and highway driving, or to run it through on a 4 hour trip at 120 Kmph/ 75 Mph? Perhaps there's no difference, but I read on a post that using it over a longer period of time will allow it to do more good.

Opinions solicited

Thanks!

 

Longer gooder.

Chemical reaction time to do the work.

 

With my limited knowledge, I would say both. Over time gives it a chance to sit and dissolve "gunk". Continuously run from beginning to end at once allows cleaning without fuel system starts and stops.

I am still curious how one solvent diluted with another solvent makes for a better solvent that does no damage, but that's another discussion.

 

My answer is 'neither'. Save your money. If your car is running poorly due to clogged injectors, get it fixed properly. If it's running normally, why do you need it? Pump gas has all the cleaning additives required for a healthy engine.

 

What do the product directions say?

Seriously, if the directions aren't specific enough, why not go to the mfg'r. web site and see if they address different ways to use their product ?

 

Jaguar issued a TSB years ago for cleaning the injectors.

bob gauff

 

Damn bob you comep with some old tsb's. How about a newer more relavant to this issue from jaguar that specifalyl recommended bg44k.
Jtb 00241. And no mikey gas additive are not enough to fix. And its not just a clogged injector, but bepodits on the tips esp. The direct injectors

 

Agree.

 

I'd like to see a full and complete copy of that TSB. Here's the summary:

Summary:

JAGUAR: ON SOME VEHICLES, THE ENGINE IS MALFUNCTIONING BY EXHIBITING HARD STARTING, POOR FUEL ECONOMY, MISFIRE, AND/OR A ROUGH IDLE CONDITION. FUEL CONTAMINATION OR POOR FUEL QUALITY LEADS TO CLOGGED FUEL INJECTORS AND RESTRICTING FUEL INJECTOR FLOW

Which addresses a vehicle with an existing problem specifically due to contamination or poor fuel quality. That's a different kettle of fish than adding something to the gas on cars suffering none of the stated problems.

 

I contend that there are deposits that will build up over time of which the standard cocktail of additives in today's fuels do not prevent from accumulating. I further posit that BG 44K, and almost NONE of the other additives in the marketplace, do a great job of removing some or even most of these accumulations, and present a good preventative option.

BG touts a bevy of test results and testimonials to support their claims of:
http://www.bgprod.com/blendr/magicPill.html
" ...recent independent tests have documented its ability to scrub corrosion from fuel sending units, remove choking substrate deposits from catalytic converters, and restore ignition efficiency."

Furthermore, I believe increasingly that BG's pressurized intake and fuel induction cleaning agents/procedures are an excellent preventative maintenance practice that can and will hold in abeyance the need for: fuel injector removal and cleaning or failure and replacement, throttle body failure and necessary rebuilding/replacement, etc.

 

Great theory- but where's the evidence to prove it? Probably not one in a 1000 owners uses any additives in the gas of any type. Blame it on being ignorant, cheap, or irresponsible, they just don't. If this neglect resulted in any operational problems we'd all know about via the media in agonizing detail and would tar and feather whatever brand of gas retailer that seemed to deserve it the most.

Reality? As stated above, I don't use them, don't know anybody that uses them and don't know of anybody that has a problem. Do a search on this board looking for people complaining about problems that were traced to clogged injectors.

As always- if there was a need and a benefit, why would the gas companies NOT take advantage of the huge marketing opportunities to put the miracle juice directly into the gas?

Speaking of marketing- are you surprised that the BG products website concluded that their own products works the best? What else would they say- it's cr*p and you're an idiot if you buy it?

Excuse the rant, this subject is one of my favorite hot buttons.

 

I got you this Mikey

 

This copy does only seem to be specific to the 5L engine but here you go.

 

Just for me? It's PERFECT! Hey- I can see my house from up here!


Thanks. Again, it addresses an existing condition thought be caused by contamination or poor fuel quality. It attempts to fix the condition by cleaning them in-situ with specific tools and equipment. There's no connection between this and the proposed addition of the same fluid to the gas tank.

I do have some professional 'history' with this subject- gas turbine engines have fuel injection nozzles not much different than the latest generation of direct injected piston engines. After monitoring fuel nozzle durability, reliability and performance for a period of over 25 million flying hours on the assembled fleet of engines, NO additives were deemed effective in removing deposits when simply combined with the fuel. The fluid was just far too diluted to have any effect. In situ cleaning, similar to what Jaguar is proposing in the TSB, was only marginally more effective than doing nothing. The only effective method to get them clean was a pyrolyitic process that baked them at around 900*F similar to a self cleaning oven. This was done in conjunction with other scheduled work 'whether they needed it or not' despite a mound of evidence indicating that performance was unaffected.

I better stop now or Norri will take my new soapbox away

 

Brutal
I lost my username/password in 2006 when I left the dealer so I don't have any newer TSBs.

Same problems with newer fixes???????????????????

bob gauff

 

FWIW, there was also Special Service Message 47638 released in April last year titled "5.0 Gasoline Fuel Additive - Clogged Fuel Injectors" that said:

Jaguar engineering now approve the use of BG 44K Power Enhancer Cleaner (which is sold in an 11oz/325ml can or bottle).

Further information on the additive can be found on the BG Products website BG Company

Please follow all instructions on the product labeling prior to use.

Please clear all stored diagnostic trouble codes prior toreleasing the vehicle.

NOTE: Jaguar recommends only using the above products a maximum of twice every 15,000 miles or 24,000km’s.

 

BG Products work. I was a non-believer myself, at one time.

Still, though, I think removing injectors for professional cleaning is best.

Cheers
DD