Well, to be fair, that’s not telling us much. Depending on how you drive your car you could have filled it to full six months ago and it’s just now down to half a tank.I got a second fuel refresh mode on the same tank of gas! **** what is going on? it made fuel refresh mode when full and yesterday another fuel refresh mode with the tank just above half...
I filled up the gas tank on March 9th.Well, to be fair, that’s not telling us much. Depending on how you drive your car you could have filled it to full six months ago and it’s just now down to half a tank.
This is just a guess but perhaps the temperatures have varied above and below the dew point such that the computer thinks that there is the danger of condensation in the oil. Just out of curiosity, what does the display say in French (without translation)?I filled up the gas tank on March 9th.
I have to add more details, well what i found today, i am french Canadian, so my minivan is set to French, in French the cluster message says (free translation) ''Fuel refresh Mode, engine running'' It add to confusion here. I decided to set the language to English and the message now says ''Fuel and Oil Refresh Mode, engine running''. So, no matter if it's a Oil Refresh or Fuel Refresh, The message in cluster will always tell ''Fuel and Oil Refresh Mode, engine running''.
Now, witch one is it? I think Fuel refresh mode will be trigerred on when the last gas fill up is many weeks back, i read somewhere it is 6 weeks or so. And what will trigger the ''Oil Refresh'' will be the number of ICE run cycles, witch depend on external temperature in first place. Where i live, we got more minus 2C temperature than above these days. Then i got an Oil Refresh, as far as i know.
Just out of curiosity, what does the display say in French (without translation)?
Supposedly part of the fuel and oil refresh mode is also a refresh mode for the spark plugs. If the system thinks they might be clogged with deposits it will run the ICE to burn them off. At least that’s what has been mentioned in these forums.Mode entretien essence, moteur en marche.
As i said, it adds to confusion.
I am 100% sure i got an OIL refresh mode because of many ICE run cycles. Not any chances to be a fuel refresh mode because not enough time as gone since last gas fill up.
Hi McBadger, Short trips definitely cause the FORM to occur. I get FORMSo my wife has gotten the refresh mode a lot this winter. I assume from reading above it has a lot to do with the cold and that she takes lots of short trips (her work has a charge station so is able to top off there. This past week we had a planned long trip coming up so we took the van to get it out of refresh mode. We topped off the tank 6+ gallons and with a full battery we started driving. What frustrated me while driving is that I noticed that the hybrid battery was draining down during the drive. Is this normal when driving on gas at interstate speeds during the refresh that the main hybrid battery drains down as well? If so was kind of frustrating knowing that when we got to our destination there was no chance of driving around in the town on battery and we would be on gas the whole time until we got home and could charge up again.
Can you do everything the same but pop the hood to force ICE engine to come on instead of the accelerator method? Seems like that would be easier and get the engine hot enough, but I've never tried myself. I live in a warm area and don't encounter FORM on my van.I put the front wheels of my car in the garage, the rest outside. I put the car in drive and push the brake with my left foot. Then I give it just a tiny amount of throttle with my right foot. Just enough to get the rpm's up. I wait for the oil guage to reach 200, which takes10 minutes or so.
Neat, so you’ve tried this? I’ve tried holding the brake and pressing the throttle but have never had the engine come on. Does it need to be floored?Great hypothesis and explanations, spot on on all accounts, I believe. Not sure if anyone has added this yet, which may lead to a third solution? Due to the engineering wonder that is the Toyota synergy drive system and all derivatives, of which the PacHY PHEV-33mi is (won't get into that, moving on).
Beginning with the Prius, of which in 2005 I converted into a PHEV-10mi, and documented many other projects of various methods. Anyway, among it's many synergy tricks, has a "Forced Regen" mode. For whatEVer reason you may have, you can put (any PHEV?) into a drive gear, preferably drive or low/breaking. If you stand on the brake, and then stand on the accelerator, the engine will spool up slightly (unlike a non PHEV which will try to red line). In this mode the car will Regen Charge the traction battery, again, through the MG1(output/road)/MG2/ICE CVT Synergy magic geometry. (This is the series hybrid mode, of multiple that this configuration is capable of).
The side effects of this mode, which are applicable to the oil refresh is that: First, the radiator is rendered useless due to being stationary, until highest temp threshold when the radiator fan is activated. Second, slightly higher RPM makes more heat and pushes the oil slightly more rapidly through the engine, likely slightly better for the purging of moisture. The battery system will know when to cut out the Regen, you may notice the loss of this load (the Regen energy) when that occurs, this has nothing to do with oil refresh, but hope it preempts worries. As I opened with, this is a known operating mode (Forced Regen), that all these drive systems have (unless yours doesn't behave this way, I haven't tested them all).
I have just attempted this for the first time, and it appears to work. Was able to quickly reach 207f oil temp, and the message was cleared. Will see how it behaves for the next few trips. Thanks for the initial insight which lead me to attempt a Forced Regen for the first time in years, make that about a decade. It is such an odd mode to use as it seems the antithesis of what we want which is to use electricity as an external fuel rather than one we create by burning gas on purpose.
I just read the post 2 above this one, and feel compelled to add: DO NOT USE my solution or ever run your engine INSIDE YOUR GARAGE, without proper ventilation you could be injured or killed.
I have tried it exactly twice, today, on the PacHY, first did not reach 205f before needing to drive, which cools everything down... I used Forced Regen many times on the my 05' PriusBlue conversion. The documentation was in collaboration with CalCars, 7 years before the first OEM PHEV (ex Volt/i3). Part of the Seattle Electric Vehicle Assoc, a sub-project of mine eaa-phev dot org, now stale for years, since you can now just buy a PHEV or BEV (Thanks Tesla).Neat, so you’ve tried this? I’ve tried holding the brake and pressing the throttle but have never had the engine come on. Does it need to be floored?
BMW will let you rev your engine, I didnt try flooring it however.
So what are you up to that you are converting prius’s and documenting your methods
I like the idea of a hidden mode in the vehicle. I will try this out next time I have my engine run.. may be several months however.
Very cool info! Appreciate that and welcome to the forumI have tried it exactly twice, today, on the PacHY, first did not reach 205f before needing to drive, which cools everything down... I used Forced Regen many times on the my 05' PriusBlue conversion. The documentation was in collaboration with CalCars, 7 years before the first OEM PHEV (ex Volt/i3). Part of the Seattle Electric Vehicle Assoc, a sub-project of mine eaa-phev dot org, now stale for years, since you can now just buy a PHEV or BEV (Thanks Tesla).