Get ready for 15% Ethanol
#31
Instructor
But - no free ride - fuel economy on E85 is about 25% less than on E10 due to the lower energy content of ethanol versus gasoline. Back then I was driving a lot of miles, and really enjoyed the power, but the constant fill-ups were a pain and I ended up going back to E10.
Daryll
#32
I am waiting for the new WaWa to open down the street. Supposedly going to have ethanol free high octane gas. Probably have to pay a premium for NOT having something mixed into it. Just like laundry soap...buy the fragrance free stuff and you pay more because they don't ADD fragrance or perfume. The world is a strange place.
#33
Rennlist Member
I'm not smart enough to know what the answer is. But it worries me that we feel the need to increasingly use food for fuel. I guess in the next 20 or 30 years we'll see. Until then I'll keep filling my little P-cars with whatever they sell me at the pumps.
D.
D.
#34
Rennlist Member
I've kept on top of this topic and sent out newsletters to our customers about changes in fuels, early this year and last year as well:
https://myemail.constantcontact.com/...id=iD8Bl4jX1H8
The above link covered changes to Porsche oil standards as well as ethanol compatibility for all Porsche models. Long story short, everything before the Boxster and 996 is only approved for E5 (5% ethanol), which requires adding fuel additives to protect fuel system components.
A more general email about ethanol in general, for those who want to read it, can be found here:
https://myemail.constantcontact.com/...id=33JXXLMiTK0
https://myemail.constantcontact.com/...id=iD8Bl4jX1H8
The above link covered changes to Porsche oil standards as well as ethanol compatibility for all Porsche models. Long story short, everything before the Boxster and 996 is only approved for E5 (5% ethanol), which requires adding fuel additives to protect fuel system components.
A more general email about ethanol in general, for those who want to read it, can be found here:
https://myemail.constantcontact.com/...id=33JXXLMiTK0
The following 2 users liked this post by Charles Navarro:
420WHP944 (09-02-2021),
pdxmotorhead (10-19-2019)
#36
Three Wheelin'
I've kept on top of this topic and sent out newsletters to our customers about changes in fuels, early this year and last year as well:
https://myemail.constantcontact.com/...id=iD8Bl4jX1H8
The above link covered changes to Porsche oil standards as well as ethanol compatibility for all Porsche models. Long story short, everything before the Boxster and 996 is only approved for E5 (5% ethanol), which requires adding fuel additives to protect fuel system components.
A more general email about ethanol in general, for those who want to read it, can be found here:
https://myemail.constantcontact.com/...id=33JXXLMiTK0
https://myemail.constantcontact.com/...id=iD8Bl4jX1H8
The above link covered changes to Porsche oil standards as well as ethanol compatibility for all Porsche models. Long story short, everything before the Boxster and 996 is only approved for E5 (5% ethanol), which requires adding fuel additives to protect fuel system components.
A more general email about ethanol in general, for those who want to read it, can be found here:
https://myemail.constantcontact.com/...id=33JXXLMiTK0
I know the fuel hoses on the old 911's were horrible for self destructing if they got E* in them.. As well as injector o-rings..
#38
Rennlist Member
I ran a race car on pure alcohol back in the mid 80's. It is a wonderful fuel for a Turbocharged Race Engine, but is very dry, I had to mix in some Ester based top end lube oil to lube the valve guide and top rings.
It also absorbs water like a sponge. Back then if buying by the barrel in 55 gallon barrel was $2 a gallon, but it took twice as much alcohol to go same distance so compared to gasoline was $4 .
My 996 doesn't have any issues with E10, but all my small engines do !!! weedeaters, lawn mowers , and chainsaws will stop up the small jets if let sit for 4-5 months during the winter. I buy non-ethanol for the small engines. but I have to go out of my way to get it so I get 10 gal at a time.
It also absorbs water like a sponge. Back then if buying by the barrel in 55 gallon barrel was $2 a gallon, but it took twice as much alcohol to go same distance so compared to gasoline was $4 .
My 996 doesn't have any issues with E10, but all my small engines do !!! weedeaters, lawn mowers , and chainsaws will stop up the small jets if let sit for 4-5 months during the winter. I buy non-ethanol for the small engines. but I have to go out of my way to get it so I get 10 gal at a time.
#39
Rennlist Member
No. Best we can deduce is that perhaps the extended use of E10 fuels may have something to do with the injector problems we are seeing.
#40
Three Wheelin'
My next service item I was considering was sending the injectors out for refurb..
I run good fuel, and techron in all the cars I own usually a tank before an oil change..
I figured a 03 should be fairly safe generally on E10/15 But I wonder what will happen with E20..
I run good fuel, and techron in all the cars I own usually a tank before an oil change..
I figured a 03 should be fairly safe generally on E10/15 But I wonder what will happen with E20..
#41
Rennlist Member
My next service item I was considering was sending the injectors out for refurb..
I run good fuel, and techron in all the cars I own usually a tank before an oil change..
I figured a 03 should be fairly safe generally on E10/15 But I wonder what will happen with E20..
I run good fuel, and techron in all the cars I own usually a tank before an oil change..
I figured a 03 should be fairly safe generally on E10/15 But I wonder what will happen with E20..
#42
Ethanol is hygroscopic and corrosive for some metals in your block. Such as aluminium. it deteriorated the components that are in direct contact with it.
If your car was made in a period where ethanol was not considered as a possible additive to the fuel a lot of components are made of materials which in fact are not ideal for running with low concentrations of ethanol.
with the right choice of materials the problems that ethanol causes can be delayed not eliminated.
i find this article very comprehensive to read
https://www.popularmechanics.com/car...damage-engine/
If your car was made in a period where ethanol was not considered as a possible additive to the fuel a lot of components are made of materials which in fact are not ideal for running with low concentrations of ethanol.
with the right choice of materials the problems that ethanol causes can be delayed not eliminated.
i find this article very comprehensive to read
https://www.popularmechanics.com/car...damage-engine/
#43
Drifting
I have used the Lucas Ethanol treatment below on vintage cars based upon a recommendation from a vintage car forum. I really don't know if it helped or not. Reviews on Amazon seem to be good: