Bosch 4 plugs - Page 2

Also in the quote, you state an oil and oil filter as an upgrade. Oil and filters ARE not upgrades either.

I like that sig but Like two doors more a little two big for me. I am sick of argueing about this subject with you. What type of oil you use.

You already know the answer to that. Mobil 1. For the change interval I use (5000 miles), there is absolutely no difference between Amsoil, Mobil 1, and (eek) Royal Purple, but that is a discussion for another debunk the myths thread of yours.

Upgrades are diferent from mods agreed yeah.
The stuff I did were upgrades to the truck. Useing regular oil rather than Royal purple is a upgrade right you are uprading to a better oil with better performance results. A K&N filter is a upgrade from having a no name oil filter that cost 2 bucks. More oil circulations and bigger cavity for more oil and stronger too. Now the plugs was an upgrade to stock 1.50 plugs. I am telling you what I have done and how it made it better what more merit is there. I would like to hook it up to computers and stuff but not that techincal.. I gained almost 5 gallons a miles just by doing what I did. Notice I did not say o2 as a upgrade.

I hope you use fully senthetic mobil 1. If not I am done talking to you.

You will extend the life of you engine if you change oil ever 3 thousand miles or 3 months.

Ok... Upgrades on any other board I'm on are synonymous with mods. Stock plugs for your '97 Blazer were AC Delco Double Platinums. Switching to the Bosch +4 (or a-4 plug as you call it) was not an upgrade in any way as I have stated numerous times that the +4s have never and will never be proven to increase ANYTHING.

Please, by all means let this thread die gracefully. Stop talking crap. For your information Mobil 1 IS a synthetic. Mobil oils (without the 1) are typically conventional oils and or blends. I hate to keep on doing this to you, but the 3000mile/3month oil change is just a myth. Heck, I can go longer with the Mobil 1 right now, but why take the risk. I have had my oil analyzed on several occassions from my Bonneville and it was always 50% oil life remaining from the local lab. And I change my oil when the oil life indicator gets down below 25% oil life remaining. The oil life indicator on my Bonneville is based off of engine revolutions and calculated engine load compared with emperical data from testing. On both occasions my Bonneville's mileage was well over 8k miles before I got nervous and changed it. I always run the 4.3L filter (1" longer than the stock 3800 filter) on my Bonneville which is probably why it is getting good oil life.

Oh and the $2.56 (at Sears) Purolator Plus filter is just as good of a filter as K&N. Actually filters out smaller particle sizes than the K&N. So what if it doesn't flow as well. Flow matters to a point, but a quality filter (Mobil 1, AC Delco, Purolator, PureOne, Napa Gold, Wix and K&N) is what matters most. Fram is absolute crap, but again, not on topic with this thread, but since you brought it up and started this thread, I guess it's ok. Of those quality filters I listed, the ones of choice for me are the Purolator Plus and/or PureOne (both made by Purolator). The PureOne is a nicer filter that flows a bit better.

For all your oil & filter information, check out:
Oil Filter Study - Construction and materials used only
Another Oil Filter Study with flow tests - take note of the K&N flow and filtration effectiveness vs others listed above
Another one, but I don't agree with their Fram X2 comments
Bob is the Oil Guy - My defacto first stop for anything oil related.

Here is an absolutely independent test comparing Mobil 1 and Amsoil. Independent Synthetic Oil Study

One last thing... Do you put stickers on your car and claim they add horsepower too? I just lost more braincells reading your posts...not to be rude, but how many forums have you left due to stupid e-arguements that you have started?...





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This thread is the stupidest one I agree. I tell you what though I will still buy bosch over delco so it does not matter what you guys say. BMW, Benz, Volvo, Mazda, Jaguar, all use bosch and why not delco. I will go by what the best cars use.

Well, for those applications, they may work. The reason why they don't use Delco is because AC Delco was originally a GM owned and operated company, way back when.

Fine don't listen to first hand knowledge, reason, and simple logic. PISS OFF! Damn you are one dumb kid. If you want to go spending double and maybe triple the $$$ to use the Bosch sensor, go right ahead. If you keep your Blazer for 1-3 years, I can tell you that you will be replacing them in that time span while you wouldn't have a problem with the Delco's. Not to mention the monetary loss due to poor fuel mileage before the sensor actually craps out as well as the need for new plugs when they finally do go.

Your logic on if BMW, Benz, etc, etc use it is absolute bull crap. Different application, different sensor, different freakin' EVERYTHING. That's kind of like saying that because BMW Z8 comes with Michelin Ultrahigh performance tires and handles like it's on rails that if you put those tires on your Blazer, it'll handle like its on rails. Its just a stupid comparison. I'm sure there are applications where Bosch sensors work perfectly well. I have stated in another thread of yours that I have had some luck with Bosch sensors in Mopar (Dodge, Plymouth, and Chrysler) applications (some luck - not always). It's a crap shoot at best. To broaden out my stance, I'd go so far as to say that the Bosch O2 sensors in domestic applications are not the best, but far from the worst. In GM applications, nothing compares with the Delco's. PERIOD. Quit beating a dead horse!

I'm done with this.

This thread was in no way stupid until you dropped a few rungs on the evolutionary ladder. The information I presented was clear, concise and pretty much irrefutable.

this was very interesting for me and would have loved to see it in person. I may be goin up north to meet this "swartlkk" guy

I just learned allot from swartlkk lol,  thanks.   I also found that picture very funny lol.

AHEEM:
 
As a former manager of a British vehicle repair facility (LandRover and Jaguar) if you put Bosch plugs in a jaguar the owner will be back not only for his oil change in 3k miles but with a fouling engine from the idiot mechanic that put them plugs in there.
 
I got into it once with a technican over bosch plugs. He wouldn''t put them in and thats all we had at the moment, and I didn''t know the history of these plugs, in this type of engine (AJ28/AJ27). I about got my a$$ eaten up by three others that have been in the business of british vehicles longer than I have.
 
Now that said,
 
Please lock this thread.
 
RD