FFV and non FFV differences

When I first bought my 17 tundra FFV I immediately notice the difference in oil change interval between the FFV and non FFV that the dealership wasn't aware of.
After research done on my own I found this post from Toyota that clarified that to me and the dealership so that I could get the 2yrs or 25000 miles free oil change.

http://toyota.custhelp.com/app/answers/detail/a_id/7604/~/what-are-the-oil-change-intervals-using-synthetic-oil?

To simplify that post:
1) non FFV oil change done every 10000 miles
2) FFV running ethanol free, E10 or E15 oil change done every 5000 miles
3) FFV running E85 oil change done every 2500 miles.

I know of few differences between the 2 types of vehicles (bigger fuel injectors, bigger fuel pump, different fuel line material) to withstand the 2 types of fuel that the vehicles requires.
Other than that I'm very curious and I want to learn in which way the 2 engine are differently built to require a more often oil change on the FFV even when the same type of fuel (non ethanol, E10, E15) is ran in both types of vehicles.

 

Subscribed.

 

Im thinking its the quality of the fuels, plus those compounded EPA figures for yearly carbon impact (oil changes emissions etc), plus standard CYA Corporate Policy.

They should probably change nonFFV back to 5k...at least until they get the damned ethanol out of the gas completely. Why are they still putting it in there anyways? (Oh yeah, corn farmers love sucking subsidizes out of that gubment teet).

100% 89octane would probably boost the average Tundras MPG 15-20%. Thats the kind of gain I saw in a newer model car when I had to stop at a farm co-op in Nowheresville MS....all they had was agricultural grade ethanol free 89 octane.

 

No difference in the lubricated parts in engine. 5k is Toyota CYA. Talked to service writer about this but what do dealers know?

 

Combined I average between 16.5 and 17.5.
All I've ever used is ethanol free gas 89 octane either from BP or Shell even tough my truck is a FFV. I had a nice chat with a very passionate mechanic today that works only on TOYOTA vehicle about upgrading my fuel thank to a 38 gallon. My 17 SR5 didn't have 38 gallon tank because I chose the package that offoffer front bench seat. That is plain stupid from TOYOTA, if you have a towing package the 38 gallon tank should be standard.
A lot of mechanic at dealership are incompetent in my opinion. One dealership quoted me $7000 just in parts for the upgrade when. I've found a treads from someone that has done the upgrade and parts where only $1700. Labor should be no more then 3 hours. Will see how it goes.

 

My mechanic suggested every Tundra should change oil every 5000. When I asked him which oil does the dealership uses his response was "the cheapest they can buy".
Now that I'm done with free oil change I'll let him handle it, he uses CASTROL in his TUNDRA and if it works for him it sure works for me.

 

I use Castrol synthetic and it is clean at 5k. I think that mechanic just wants your money.

 

Only places you will find ethanol free here are near lakes and its 0.80 more per gallon.... I just dont trust any of these fuels. Gas doesnt smell like gas anymore...I miss Amaco Ultimate Clear 93 from 15 years ago. Only gas I could actually feel a difference with in my Cobra.

 

I pay between $2.89 and $3.09 per gallon

 

At how many miles you suggest I should change it? I really would like to keep the truck for a very long time and I'm concerned about my 12-15 minutes 5 miles short drive to work. What are your driving conditions?

 

Here's. My 2cents. I only run Klotz Synthetic Lubricants in everything I own. I own a Boat shop and 3 Tundras and have never ever had a single engine failure. I only use 93 octane in all my trucks, weed eaters, Blowers, chainsaws,mowers, Outboards, Inboards and Klotz!

1 Example: I let my 1983 Dodge Ram 4x4 sit for over 2.5 years at the farm. Put in a new battery, several ounces of 93 octane down the carb and it fired right off and off the kids went around the farm having fun. Klotz oil and 93 . Still going perfectly a year later. Try that with 87 and shit oil! Dead as a doorknob.

Spend the money if you love what you own guys! We aren't Ford Owners! We are Tundra Owners! Represent!!!!!!
#KlotzN93OctaneOrNothing

 

I got free oil changes for life along with a lifetime engine and power train warranty. I will be following the Toyota service recommendations for my truck with oil changes every 6 months or 10k miles for my non FFV motor.

 

E85 requires a lot more fuel. I believe, and someone correct me if I’m wrong, that the more fuel tends to wash down the cylinder walls and Gets in the oil, so you have to do more oil changes. I never really looked into it, that’s just what I understand. Never seen e85 for sale anywhere, and with the crappier gas mileage it’s a wash financially so I haven’t gone looking.

 

Didnt they get rid of FFV engines for 2020 models?

 

Looking at the Toyota Owner's site -

MY 2019 has two warranty and maintenance guides (WMG's). One is for FFV, the other non-FFV.
MY 2020 only has a single WMG for non-FFV.
It would appear there is no Tundra FFV for 2020.
Checking Edmunds, there is no mention of FFV as an available 2020 model in the sub-vehicle types.

Here are my opinions. Someone correct me if I am wrong or out of line please.

When you factor in the additional cost of 2,500 mile oil changes, plus the lowered fuel economy of E85, it couldn't possibly make any sense to run E85.
I'm in wonderment as to why FFV ever existed in the first place. Maybe it was a CARB (California Air Resources Board) regulation.
Again, just my guess - possibly government (Fed EPA or CARB) mandates requiring FFV vehicle production were revoked.
My guess - it's not that anyone actually seriously runs E85. It's just that Toyota was required to build them.
My guess - probably it was the same deal, requiring gas stations to supply E85 pumps, and for refineries to produce E85.
I'll bet that E85 production is token, based on small demand.
Maybe E85 would make sense if gas went up around 5.00 or 6.00 a gallon again. And you changed your oil around 5K, not 2.5K.
As of this writing, regular gas is about 3.85 in the LA area (I'm from Florida, where the average price for regular in the Tampa area is around 2.45)

 

This ^^ has been my experience with Mobil 1. At about 6,000 miles the oil is still gold in color. I find that amazing. I do my engine oil changes at 10,000 mile intervals.