Full Synthetic vs Synthetic Blend

[JExpedition07]

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[nomarhits400]

Getting the oil up to temp is what boils off the water and the fuel that gets into it. Water is a byproduct of combustion - with each gallon of gas burned creating at least 2 gallons of water. This is also why aircraft leave contrails -- they're literally dumping water vapor out of the engines as combustion byproducts.

Hmm...I think its a lot closer to 1:1 than 2:1- but your point still stands.

 

[HammaMan]

Hmm...I think its a lot closer to 1:1 than 2:1- but your point still stands.

Here's the combustion equation not factoring in the other various components like CO and NOX as combustion itself is messy and there's a lot of nitrogen that is required to get that amount of O2. Sometimes nitrogen bonds to the oxygen and becomes NOX. Hydrogen can also bond with sulfur and become hydrogen sulfide. Most nitrogen just remains nitrogen.

1 kerosene + 13 oxygen molecules becomes → 12 CO2 molecules and 13 water molecules.

C12H26 + 13O2 → 12CO2 + 13H2O

Your take on aircraft is incorrect. Contrails are a direct result of the compression of the cold atmosphere air, being heated, then released out the engine. 80% of the air through the engine is only compressed through the N1. Contrary to your opinion, only a small amount of the air that passes through the engine is used for combustion.

Bold statement there cotton
Might want to do just a wee bit of research on that

 

[FaaWrenchBndr]

Bold statement there cotton
Might want to do just a wee bit of research on that

Been flying around the world and working aircraft for over 35 years. No research needed. Get out of your text book and into the real world.

If your hypothesis was correct, every aircraft with the turbine engine, would leave a contrails. They don’t, it’s all about the air temp and moisture content of said air,
at a given altitude.

 

[HammaMan]

Been flying around the world and working aircraft for over 35 years. No research needed. Get out of your text book and into the real world.

If your hypothesis was correct, every aircraft with the turbine engine, would leave a contrails. They don’t, it’s all about the air temp and moisture content of said air,
at a given altitude.

You mean like a C130? Do share its bypass ratio

 

[FaaWrenchBndr]

Not even close slick…….

 

[SilverSpur]

I have been reading some older threads on this topic but was wondering if there are any new opinions out there. It appears in previous threads opinions are quite varied. I am toying with going full synthetic at my next oil change which will be around 30,000 miles on my 2023 PB. Trying to decide if any advantages are that significant and if I go there, what milage intervals are folks using. Thanks.

With High grade synthetics you can go 7,000 to 10, 000 miles between oil changes. Synthetic oil greatly reduces wear. As for the blends you can go the 5,000. The lower regular oils now are better than the higher end oils 15 years ago. On F150 I had the dealer do the oil changes until it was out of the factory warranty. That way if there was an issue the vehicle was already there.

 

[Losungen]

I use full synthetic, motorcraft in my 2.7L. It’s a high mileage commercial vehicle. The dealerships always try and talk me out of it, to which I state I could care less about the few extra bucks when I’m doing a bi monthly oil change at times. I’m after reliability and longevity.

I change it every 5,000 miles, pushing up to 7,000 miles if I have no choice.

 

[Billflangjr]

I have been reading some older threads on this topic but was wondering if there are any new opinions out there. It appears in previous threads opinions are quite varied. I am toying with going full synthetic at my next oil change which will be around 30,000 miles on my 2023 PB. Trying to decide if any advantages are that significant and if I go there, what milage intervals are folks using. Thanks.

Synthetic all the way, I do 3000 miles or 6 months and change. Bottom Line, Oil & filter is cheep. Motors or not!!! Oil & filter at Walmart is you Best Buy. I have a 24 Tremor just over a year, 8000 miles and have changed the oil & filter over 5 times and the dealer has done it once !!!

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