Blocked Manifold with Catch Can and EGR Block

[littleriver]

So the fuel particles mix with the oil and its this oil that gets blown back through the intake system?

BP diesel is different from Caltex diesel?

That's how I understand it also ... go the catch can and thicker specified recommended oil to minimize blow by

Think BP and Caltex are very similar. .. each has its own special formula and at present are the only 2 that offer a premium diesel ...

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[Giddyup]

So the fuel particles mix with the oil and its this oil that gets blown back through the intake system?

BP diesel is different from Caltex diesel?

BP diesel (not ultimate) seems to be a lot different to Caltex Vortex diesel.

I've pretty much run regular bp diesel (closest servo) since I've had the car, only mod is the egr resistor. I consistently get 8.8 L/100km with driving I do.

A couple weeks ago I put in a tank of Caltex. Noticed the engine was a bit more rattly and I was getting worse fuel economy. By the end of the tank I calculated (going by the odometer and the fuel pump) that economy was 10% worse with Caltex.

Went back to bp and economy was back to normal.

I've used Caltex a couple times over the last 4 years and always get the same result. Run bp ultimate if I happen to be near a servo that sells it and don't notice any difference from the regular bp diesel.

[itsamitsi]

BP diesel (not ultimate) seems to be a lot different to Caltex Vortex diesel.

I've pretty much run regular bp ultimate if I happen to be near a servo that sells it and don't notice any difference from the regular bp diesel.

Yeah I've noticed the same. Normal and Ultimate seem to be the same economy and power yet they are different as the ultimate does not foam. I think they have changed the formula from when it first came out. Vortex is OK but mainly run BP.

[PeterC51]

If you believe their hyperbole....
"In addition to its powerful cleaning agent, Vortex Premium Diesel features our next-generation foam inhibitor. This ensures no stable foam forms, to provide a cleaner and faster fill"

https://www.caltex.com.au/our-solutions/fuels

LOL "Next-generation foam inhibitor"!

[02-SR5]

That's how I understand it also ... go the catch can and thicker specified recommended oil to minimize blow by

Think BP and Caltex are very similar. .. each has its own special formula and at present are the only 2 that offer a premium diesel ...

...

I've just bypast the catch can altogether.

I run a hose from the side of the rocker cover down behind the block and vents into the atmosphere. Ilegal I know, but I will never get polluted air through the intake.

I have blocked the bit where it would normally attach just before the turbo.

That and the EGR block ensures 100% clean air is only going into the engine.

Diesels love clean fresh air and clean fresh fuel. You feed it both of these, it will last a very long time.

At 110,000 on the speedo now, I am always asked if I have had a chip installed or ECU tune. Nope, it's just a good solid engine the runs off clean air.

[Peterng]

and

So the fuel particles mix with the oil and its this oil that gets blown back through the intake system?

BP diesel is different from Caltex diesel?

The excess combustion gasses in the cylinder head, after the combustion process, move...get pushed..around the piston rings and are forced downwards ..passing the piston rings down into the crank case..it is this movement of these combustion gasses passing the piston rings..that is called "Blow By"...theses flowing gasses are mixed with the oil in the crank case...the positive pressure oil vapours off the crank case mixture is then moved into the intake manifold and combined with the intake air into the cylinder head to be burnt during the next combustion phase of the cycle.

As for fuel particles and stuff...I can't comment.. BP and Caltex fuels...their marketing and stuff...has my BS meter vibrating...

[littleriver]

and

The excess combustion gasses in the cylinder head, after the combustion process, move...get pushed..around the piston rings and are forced downwards ..passing the piston rings down into the crank case..it is this movement of these combustion gasses passing the piston rings..that is called "Blow By"...theses flowing gasses are mixed with the oil in the crank case...the positive pressure oil vapours off the crank case mixture is then moved into the intake manifold and combined with the intake air into the cylinder head to be burnt during the next combustion phase of the cycle.

As for fuel particles and stuff...I can't comment.. BP and Caltex fuels...their marketing and stuff...has my BS meter vibrating...

As quoted by tech dept of well known tuning racing dept .. only use bp fuels reason being reliable mix of 52 cetane and less soot and sulphur. . Said the gases/vapour that pass back through the system tend not attach themselves ... I have also seen this on engine rebuilds of over 400k+ km on customers vehicles ...

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[KevL]

With refineries closing, most of our fuel, whether imported or locally refined, is shared between fuel companies. Only the additive packages change. Only Caltex still refine in Brisbane. Everyone else's fuel up here either comes from there or out of a boat from Singapore.
What I've noticed over the years is a lack of consistency with fuel companies. 2 years ago I used BP Ultimate diesel exclusively if available, until I had to fuel with Caltex one day. The difference was extraordinary. Noticeable improvement in throttle response and torque.
But.
Some tanks are better than others. Some Caltex isn't as good as the previous tank and I've used BP that was indistinguishable from Caltex. I've never been able to tell any difference between ultimate and normal bp. Of course, BP don't claim any improvement in power from ultimate, only restoration of power.
I've had the worst fuel economy and my best fuel economy from Shell. Generally though the car hates it.
I reckon you never know what you're going to get until you fill up and drive off.



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[Peterng]

As quoted by tech dept of well known tuning racing dept .. only use bp fuels reason being reliable mix of 52 cetane and less soot and sulphur. . Said the gases/vapour that pass back through the system tend not attach themselves ... I have also seen this on engine rebuilds of over 400k+ km on customers vehicles ...



...

Right...
Without rabbiting on too much on CEM products, that's a reason why I use their FTC decarboniser. It creates a cleaner higher intensive "burn" in the cylinder at compression detonation. This incinerates a fair bit of sulphur and soot in the combustion process. I've noticed a bit more responsiveness from the motor. But that's a different debate in a different thread.
As for the different types of diesel..BP, Caltex etc..I don't know for we only have one type up here...supposed BP, but that is debatable.


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[Lakey]

So what is the "easiest" way to check the internal state of the manifold without dismantling half the engine?

[BanjoPato]

Quick question,does anyone have real time experience with either the SPV or Munji EGR block?
What's the difference,apart from price?
Now I've got a clean manifold I'm considering this mod.