e85 and Oil - How they mix - Page 2

apagan01 · Aug 13, 2009, 04:39 AM

Quote:

Originally Posted by Green Meanie

So Shell Rotella T 5W 40, AMSOIL's 10W 30 racing oil,,,,whats the best oil to combat the sludge build up.

Dominator Racing oil will wistand the hars abuse that hot fuels throw at them by delution ect...

Dominator Synthetic 10W-30 Racing Oil is recommended for high-rpm, high-horsepower, turbo/supercharged, gasoline- or alcohol-burning and nitrous oxide gas-injected applications operated under severe conditions

Green Meanie · Aug 13, 2009, 06:00 AM

Going E85 this week (Finally) so thats good information to know. If I can't find it locally I'll be contacting you.

apagan01 · Aug 13, 2009, 10:15 AM

Quote:

Originally Posted by Green Meanie

Going E85 this week (Finally) so thats good information to know. If I can't find it locally I'll be contacting you.

we will be here, and with great pricing

oldevodude · Aug 20, 2009, 10:29 PM

Quote:

Originally Posted by apagan01

Dominator Racing oil will wistand the hars abuse that hot fuels throw at them by delution ect...

Dominator Synthetic 10W-30 Racing Oil is recommended for high-rpm, high-horsepower, turbo/supercharged, gasoline- or alcohol-burning and nitrous oxide gas-injected applications operated under severe conditions

While some will agree that e85 could be harsh.... It would be due to the Ethanol not mixing with oil and the thanol thinning the oils viscosity. The mobil one descripton clearly states their diesel oil adds more detergents to combat the affects of E85.

Can you be more specific?

Just trying to offer objective discussion here. I have used the Rotella in other cars but tend to run motocycle oils due to being SF and SG rated as these have Zinc and other additives that might accelerate catalytic converter wear (hence not used on cars) but help quiet the valvetrain down . For me there is an audible difference between Mobil 1 and Say Motul products.

I can't comment specifically on Amsoil so I won;t.

Objective here is to simply offer input on subject matter.

PS I change oil when the smell oil is almost like e85 and the viscosity is definitely lower or oil is much thinner due to e85 exposure.

My two sense

sdfontanini · Aug 24, 2009, 08:59 AM

I need to get off this Mobil 1 5w30 I guess.

bzzbee2 · Aug 24, 2009, 04:02 PM

I have over 10k miles on e85. sending out for analysis every 1k. Shockingly there is no big change in the viscosity when using e85 in lieu of premium pump gas. Tried several oils over the life of the car, and i am on my 3rd type of oil since e85 switch. (testing purposes). I dont track my car. I rally-x it.... So it gets a beating.

brian_k03 · Aug 25, 2009, 02:14 AM

Quote:

Originally Posted by bzzbee2

I have over 10k miles on e85. sending out for analysis every 1k. Shockingly there is no big change in the viscosity when using e85 in lieu of premium pump gas. Tried several oils over the life of the car, and i am on my 3rd type of oil since e85 switch. (testing purposes). I dont track my car. I rally-x it.... So it gets a beating.

how often are you changing the oil?

bzzbee2 · Aug 25, 2009, 08:01 AM

The longest i went was 4500 miles. usually changing at 3k miles.

oldevodude · Aug 27, 2009, 12:27 PM

Quote:

Originally Posted by bzzbee2

I have over 10k miles on e85. sending out for analysis every 1k. Shockingly there is no big change in the viscosity when using e85 in lieu of premium pump gas. Tried several oils over the life of the car, and i am on my 3rd type of oil since e85 switch. (testing purposes). I dont track my car. I rally-x it.... So it gets a beating.

Well I must be leaking some fuel in the chamber as I can definitely smell it and while i do not send oil out for analysis it is noticable thinner by squeezing or feeling it with my fingers and comparing it to fresh oil.

In the end I imagine any quality oil is fine I just do not like the ticking sound that is present with Mobil one in MY car.

Taimur · Aug 28, 2009, 10:20 AM

^^ I'm in the same boat as you and I would advise changing your oil more frequently. I also believe it has a lot to do with the tune. If your car is tuned richer (where e85 makes power), the oil will break down at a much faster rate.

I'm assuming people who are getting more mileage and the analysis is showing ok are running much leaner.

PS... I'm using Mobil1 15w-50

bzzbee2 · Aug 31, 2009, 10:28 PM

I should clear up what i meant. There is no significant difference in viscosities between the two fuels. My oil does smell like e85. but when im running 91, my oil smells like 91. Percentages of fuel in oil in my case were about 1/10 of a percent different. Using a finger test is not the most reliable as your comparing an oil thats broken down to one that is fresh. Either way. Oil is cheap and so are the filters for this car. I say change away. I always feel better after changing.

bzzbee2 · Sep 18, 2009, 01:17 PM

Quote:

Originally Posted by Taimur

^^ I'm in the same boat as you and I would advise changing your oil more frequently. I also believe it has a lot to do with the tune. If your car is tuned richer (where e85 makes power), the oil will break down at a much faster rate.

I'm assuming people who are getting more mileage and the analysis is showing ok are running much leaner.

PS... I'm using Mobil1 15w-50

I am running rich. The oil is not breaking down any faster (based off of lab analysis).

My personal preference for oil is redline or motul. I have heard of people doing analysis with both rotella t and castrol german... both have great results.

oldevodude · Sep 18, 2009, 10:25 PM

Quote:

Originally Posted by bzzbee2

I am running rich. The oil is not breaking down any faster (based off of lab analysis).

My personal preference for oil is redline or motul. I have heard of people doing analysis with both rotella t and castrol german... both have great results.

Castrol German used to be available at my local Autozone but they stopped carrying it

Motul is good stuff as it is predominately used in motorcycles from waht I can tell and they tend to frequently rev a lot higher than cars (street cars to street bike comparo) and the oil is designed and does seem to resist shear.

In the end I would rather change too much than not enough as recuring oil changes spread over the time are better than the big hit of engine repair

bzzbee2 · Oct 15, 2009, 01:06 PM

I agree with oldevodude. More changing is better. I just sent for another analysis of the redline oil this week. Should get results back in a week or 2.

I would say the biggest differences you see on the analysis is how much additives the different oils contain. Some are heavy with Moly, some are heavy with zinc, etc. Based on the analysis's that i have done, mobil 1 is fine to use with e85 as a daily driver or even some spirited driving.

If you got the money, and are constantly pushing the car in the higher RPMS that you would see on a track. Go with some Motul, Redline, or Amsoil.