Tc-w3 in gas engine

Donald said:
Diesel fuel already has additives to help with lubricity. But some people add two cycle oil or other additives to help with lubricity. Needed after they removed most of the sulfur. Diesel fuel pumps deal with a much higher pressure and most are lubricated by the lubricity of the fuel. And they cost about 10X what a gas fuel pump costs. Gasoline fuel pumps are cooled by the fuel flowing through but do not need lubrication from the fuel as gas is more of a solvent. And the diesel fuel pump that really needs the lubricity is the high pressure one. gas
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GDI vehicles also have high pressure fuel pumps, and some of them have 2 fuel pumps. Gasoline fuel pumps can certainly benefit from a little added lubricity, particularly given the presence of ethanol.
 
kschachn said:
On an automobile electric fuel pump?
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You seem to be forgetting that most newer vehicles have GDI and a high pressure fuel pump which uses a plunger/piston. There are seals in these as well as in the low pressure in-tank fuel pumps. These seals are subject to wear/deterioration, particularly in the presence of alcohol, and a small amount of lubrication can help to delay this. There are also seals in the check valves and fuel injectors that the lubrication can help with.
 
wag123 said:
You seem to be forgetting that most newer vehicles have GDI and a high pressure fuel pump which uses a plunger/piston. There are seals in these as well as in the low pressure in-tank fuel pumps. These seals are subject to wear/deterioration, particularly in the presence of alcohol, and a small amount of lubrication can help to delay this. There are also seals in the check valves and fuel injectors that the lubrication can help with.
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Hmm okay. I thought those were a different design than a diesel HPFP. I wonder if there will be widespread failures of these new pumps? Should I be worried about my Tiguan? We only have E10 in this area due to being in an EPA nonattainment zone.

As far as a regular fuel pump goes, I’m beginning to wonder how I got over 450,000 miles on my old Sienna without a failure? I’ve only ever used E10 since it was new.
 
kschachn said:
Hmm okay. I thought those were a different design than a diesel HPFP. I wonder if there will be widespread failures of these new pumps? Should I be worried about my Tiguan? We only have E10 in this area due to being in an EPA nonattainment zone.

As far as a regular fuel pump goes, I’m beginning to wonder how I got over 450,000 miles on my old Sienna without a failure? I’ve only ever used E10 since it was new.
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Because it was a Toyota, and you didn't have GDI, so you didn't have the high pressure pump. Fuel pumps DO fail on Toyota products but it is not a common failure.
The newer vehicles with GDI will all have high pressure fuel pumps. Weather or not they are particularly problematic at some point is going to be somewhat model and manufacturer dependent, but you can be sure that someone is going to have problems with these IMO.
 
Link said:
Did you use synthetic tcw3?
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In the original long thread about using TCW3 in the Corvette forum there were many people experimenting with various brands and types of TCW3 and the consensus conclusion was that it didn't make any difference weather the oil was dino, synthetic blend, or synthetic. They all worked about the same.
 
kschachn said:
Hmm okay. I thought those were a different design than a diesel HPFP. I wonder if there will be widespread failures of these new pumps? Should I be worried about my Tiguan? We only have E10 in this area due to being in an EPA nonattainment zone.

As far as a regular fuel pump goes, I’m beginning to wonder how I got over 450,000 miles on my old Sienna without a failure? I’ve only ever used E10 since it was new.
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Modern gasoline already has a slight amount of lubricant added to it.
 
tblt44 said:
Tcw 3 oils may contain materials that could shorten your 🐈 s life
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TCW3 is ash less and was certified for use in Cat equipped outboard engines. TCW3 is the newest spec that came out when emissions controls, and modern fuel injection, invaded the marine industry.

Actually, I started experimenting with TCW3 in my vehicles fuel about a week ago. We'll see what happens in the outcome.
 
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