E85 specific oil

[jaf89f]

Originally Posted by DC2R

So they say top keep to the recommended 7500 changes, huh?
Changing my oil this weekend. Maybe swap it out at 5k

My conversations were more towards which product to choose, not necessarily the interval to follow...I would definitely shorten the interval somewhat to probably at least every 5K.

[DC2R]

Originally Posted by jaf89f

My conversations were more towards which product to choose, not necessarily the interval to follow...I would definitely shorten the interval somewhat to probably at least every 5K.

Thanks for doing this legwork. We appreciate it.

[Reaper]

5500 mile oci on amsoil dominator with uoas. Turbo on e85.

[sw2oboi]

Valveline vr1 racing 10/30 is compatible with alcohol fuel. It's readily available at autozone for $9/qt. it's also high in zinc and phosphorus. Good for your motor.

[ramosryan]

I will stay away from this post, since I was a top fuel mechanic and learned all oils as a bottom end guy including breakdown of oil . For a street car or track car you will never have the abuse of a fuel car. There are to many opinions out there. Nobody will prove right or wrong cause chemistry will never be shown. Some have better but most the same. If so worried about your oil then your barking up the wrong tree.

[Kelbyat07]

Originally Posted by ramosryan

I will stay away from this post, since I was a top fuel mechanic and learned all oils as a bottom end guy including breakdown of oil . For a street car or track car you will never have the abuse of a fuel car. There are to many opinions out there. Nobody will prove right or wrong cause chemistry will never be shown. Some have better but most the same. If so worried about your oil then your barking up the wrong tree.

So what are you saying.. to use or not to use diff oil when using E85?

[FRS Johnny]

Sustina is okay for e85?

[FRS Johnny]

bumpp

[Kronos]

Just to chime in, I've been using stock Toyota oil with e85. I've just been halving my oil changing intervals. That seems to be the most important part

Edit: I should also mention I'm still NA. I've only got OFH with the stage 2 e85 tune

[FRS Johnny]

Heres my oil test. Eneos sustina 0w20. Ran I would say 80-90% on e85. One auto cross event. The rest of the miles were mostly through canyons, then some as a daily.

[ZZT86]

Thought I'd share this with you all since it's something worth looking at & certainly something the guys over @ Bitog land would get excited about

Attached are VOA & 2 x UOA for Toyota TGMO 0W20 SN GF5 Synthetic motor oil (part # 08880-83325 Made in Japan), the UOA show details for E85 use only.

Car is tuned to run the juice but is pretty much stock otherwise including it's original air filter which is due to get changed next week. It's a DD which sees lots of FWY driving & gets to about 100C each & every time twice a day - it's pretty much babied as there's little to get excited about driving to/from work. I have been running the juice F/T now for over a year so about 24K kms, have dumped the oil often & thought the oil was always in really good condition.

@bluesubie - what ya think of these ? There's more coming . . . . . comments welcome.

[bluesubie]

Originally Posted by ZZT86

Thought I'd share this with you all since it's something worth looking at & certainly something the guys over @ Bitog land would get excited about

Attached are VOA & 2 x UOA for Toyota TGMO 0W20 SN GF5 Synthetic motor oil (part # 08880-83325 Made in Japan), the UOA show details for E85 use only.

Car is tuned to run the juice but is pretty much stock otherwise including it's original air filter which is due to get changed next week. It's a DD which sees lots of FWY driving & gets to about 100C each & every time twice a day - it's pretty much babied as there's little to get excited about driving to/from work. I have been running the juice F/T now for over a year so about 24K kms, have dumped the oil often & thought the oil was always in really good condition.

@bluesubie - what ya think of these ? There's more coming . . . . . comments welcome.

Wow, nice job! A UOA and a VOA at the same time.

At first glance, oxidation in the UOA looks a little elevated but that's where having a VOA showing the virgin oxidation really comes in handy. I can't remember off the top of my head if TGMO is thought to have any ester base stocks, but esters by their nature show higher oxidation levels so it doesn't mean that you actually have oil oxidation.

For E85, I think this is pretty impressive. I've seen a few good WRX and STI uoa's on E85, and I've seen some where it really trashed the oil (could be a tune issue instead of just an E85 issue).

The only thing that jumps out at me is the silicon and you already mentioned the air filter. Although you did run the oil twice as long as last time and si is about the same. And ALS actually tests for fuel (% by Gas Chromatography) instead of estimating it based on flashpoint like Blackstone. I still can't believe the difference in fuel dilution in the twins vs. the DI WRX and Forester. I really wish Subaru would have also included port injection in their DIT's. 4-6% fuel isn't unusual in a Subaru DIT.

[steve99]

Originally Posted by bluesubie

Wow, nice job! A UOA and a VOA at the same time.



For E85, I think this is pretty impressive. I've seen a few good WRX and STI uoa's on E85, and I've seen some where it really trashed the oil (could be a tune issue instead of just an E85 issue).

I still can't believe the difference in fuel dilution in the twins vs. the DI WRX and Forester. I really wish Subaru would have also included port injection in their DIT's. 4-6% fuel isn't unusual in a Subaru DIT.

The tune is running as lean as possible at lower rpm below 3000 and lower loads under 0.8 for better economy when cruising arround town and on highway, then over 3000 and higher loads its going for max performance.

Above 3000 its running full DI till 7200, when a bit of port injection is switched back in as the DI is getting toward max usable pulse widths with a safety margin. Below 3000 its running the pretty standard pi/di split, except at idle where its full DI again, where stock runs a pi/di split

[ZZT86]

@bluesubie - really appreciating your thoughts, awesome I should make a service interval change in my service book to change out the air filter much sooner as I know damn well these cars get very dusty under hood. And yeah I can only imagine what 4-6% fuel dilution would be like on the oil - gee that's really high/bad.

Actually Steve ^^ knows the tune best as he tweaked it, I used to be able to smell the juice quite obviously & the numbers weren't quite right but reckon we're on a winner now - thanks again Steve

OCI now approaching 7500kms and the oil still looks good, that's as far as I'll take it, I will post UOA findings here soon