Worse mileage with synthetic (and Bosch Platinum +4's)?

[petrified.rabbit]

Quote:

Another consideration is the electrode configuration and how the ignition system operates. Bosch does not recommend using Platinum +4 spark plugs in engines that have a distributorless "waste spark" ignition system. On these applications, two spark plugs that are opposite each other in the firing order share an ignition coil. The problem is that when one spark plug fires on its compression stroke, the other fires on the exhaust stroke, but with reverse polarity. This can cause metal to transfer from the side ground electrodes to the center platinum electrode, creating conditions that may lead to misfires.

Bosch also does not recommend Platinum +4 spark plugs for certain turbocharged and supercharged engines, or for performance engines boosted with nitrous oxide.

from: http://www.aa1car.com/library/boschsp.htm not the best resource



same conversation: http://www.saturnfans.com/forums/archiv ... 35011.html i am not a member there.

ORLY!!??? Seems like someone else said that exact thing here and related it to platinum plugs, hmmmmmmm.... Do you read at all?

read it again, he and i are actually saying the same thing.

[Unidentifiable]

Wow.

/reply

[NorthernAveo]

Quote:

Another consideration is the electrode configuration and how the ignition system operates. Bosch does not recommend using Platinum +4 spark plugs in engines that have a distributorless "waste spark" ignition system. On these applications, two spark plugs that are opposite each other in the firing order share an ignition coil. The problem is that when one spark plug fires on its compression stroke, the other fires on the exhaust stroke, but with reverse polarity. This can cause metal to transfer from the side ground electrodes to the center platinum electrode, creating conditions that may lead to misfires.

Bosch also does not recommend Platinum +4 spark plugs for certain turbocharged and supercharged engines, or for performance engines boosted with nitrous oxide.

from: http://www.aa1car.com/library/boschsp.htm not the best resource



same conversation: http://www.saturnfans.com/forums/archiv ... 35011.html i am not a member there.

ORLY!!??? Seems like someone else said that exact thing here and related it to platinum plugs, hmmmmmmm.... Do you read at all?

read it again, he and i are actually saying the same thing.

You didn't say Bosch +4, you said platinum. You generalizing that all platinum plugs are the same as the junk Bosch +4 plugs is misinformation and misleading.

Get your story straight.....

[NorthernAveo]

Wow.

/reply

Great thread feedback.

Just about as much useful information as you have provided in this and other threads as well.

[petrified.rabbit]

[
You didn't say Bosch +4, you said platinum. You generalizing that all platinum plugs are the same as the junk Bosch +4 plugs is misinformation and misleading.

Get your story straight.....

look at the title of the thread much?

[NorthernAveo]

look at the title of the thread much?

Duh, read your own replies much...duh....

There were serious issues with platinum plugs and waste spark ignition systems.
The manufacturer of the plugs "fixed" this, but the fix still limits the ignition system.

The wasted spark eventually fouls the plugs then all the thing northernaveo said occurs.

Where in there does it state anythign other than a generalization about platinum plugs. Thats's weird, I don't see any reference to Bosch +4's, only a generalized statement about platinum plugs.

Again, get your story straight.....

[hooah212002]

Quote:

Another consideration is the electrode configuration and how the ignition system operates. Bosch does not recommend using Platinum +4 spark plugs in engines that have a distributorless "waste spark" ignition system. On these applications, two spark plugs that are opposite each other in the firing order share an ignition coil. The problem is that when one spark plug fires on its compression stroke, the other fires on the exhaust stroke, but with reverse polarity. This can cause metal to transfer from the side ground electrodes to the center platinum electrode, creating conditions that may lead to misfires.

Bosch also does not recommend Platinum +4 spark plugs for certain turbocharged and supercharged engines, or for performance engines boosted with nitrous oxide.

from: http://www.aa1car.com/library/boschsp.htm not the best resource

So does this apply to the Aveo? Meaning: is this the ignition system on an Aveo?

[NorthernAveo]

Quote:

Another consideration is the electrode configuration and how the ignition system operates. Bosch does not recommend using Platinum +4 spark plugs in engines that have a distributorless "waste spark" ignition system. On these applications, two spark plugs that are opposite each other in the firing order share an ignition coil. The problem is that when one spark plug fires on its compression stroke, the other fires on the exhaust stroke, but with reverse polarity. This can cause metal to transfer from the side ground electrodes to the center platinum electrode, creating conditions that may lead to misfires.

Bosch also does not recommend Platinum +4 spark plugs for certain turbocharged and supercharged engines, or for performance engines boosted with nitrous oxide.

from: http://www.aa1car.com/library/boschsp.htm not the best resource

So does this apply to the Aveo? Meaning: is this the ignition system on an Aveo?

Regardless of the ignition system, people have been having huge problems with these plugs on any type of engine. It will cause the fuel economy loss.

[petrified.rabbit]

So does this apply to the Aveo? Meaning: is this the ignition system on an Aveo?

It does.

And replace them with ngk plugs, even other platinum plugs have the small electrode tip compared to other types of plugs, and that is the failure point of the plug during waste spark. So why buy another set of plugs to give you the same problem.

[Daox]

Once again, respect and useful data.