Switched Oil from 5W30 to 0W20 after 193 miles, watching mileage.

Discussion in 'Gen 2 Prius Fuel Economy' started by CrazyLee, Dec 22, 2014.

  1. Mendel Leisk

    Mendel Leisk Underfoot

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    Toyota 0W20 for example, is darker then some, looks kinda like maple syrup (shameless Canadian plug) when new.

    IMG_1714.JPG
     
  2. CrazyLee

    CrazyLee Member

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    My mileage stayed low all winter. Some of that is from the cold weather of course. It was really hard to get 50 mpg in Florida this winter though on one longer trip. I managed OK but I could see that it really wasn't as good as before.

    Today I checked my 12 V battery and it was 11.98 volts, too low. Since I have a trip tomorrow to Lansing MI from Muskegon, about 100 miles, I paralleled my Booster battery to the 12V battery. Now I get 12.98V. I hope to see the usual fuel mileage. I have had about 5 drained batteries this year. One from 4 days of very zero temperatures. I boosted the battery from a spare auto battery I have on a float charger. The other dead batterys have been from left on dome lights.
    I may have to fork over some loot and buy another battery. I haven't slow charged the battery though yet so I'm holding on. I just checked the 12 V battery and it was 12.50 with the booster connected. I switched off the booster and the volts dropped to 12.40 V. I will check it again tomorrow morning and see what happened over night since I left the booster switched off. I took some pics to show what I did.
     

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    #22 CrazyLee, Apr 10, 2015
    Last edited: Apr 10, 2015
  3. JC91006

    JC91006 Senior Member

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    you can take the battery out and take it to autozone or similar to have them charge it for you.
     
  4. Easy Rider 2

    Easy Rider 2 Senior Member

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    I don't think "may" is the proper term. :)
    What's the voltage when the car is running, "ready mode" ?
    Pretty sure the battery is shot but it might not be charging right either.
     
  5. CrazyLee

    CrazyLee Member

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    I got 11.98 this morning. I got 13.8 V when I turned it on . It stayed at 11.98V this afternoon even after I ran a short errand and before I hooked up the booster. If things don't change a battery is in order.

    I am amazed that the battery's die like they do. I'm used to the old lead acid battery's just chugging along just fine even with nasty abuse. Although with out an MFD that keeps track of your gas mileage I may not have know how much the fuel reduction really was.
     
  6. CrazyLee

    CrazyLee Member

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    Quote: you can take the battery out and take it to Autozone or similar to have them charge it for you.

    I do have a Schumacher charger with AGM settings but I haven't dug that out yet.
    I ran the road test today and it helped just a little on mileage. I think since the original battery is in circuit and it is drawing excess current.

    I just tested the battery and the Shumacher charger said 12.7 volts and 65% charge. (That's very low) I set it for AGM and 2 amp charge. I'll check it again in an hour. 9:00 PM here now. Once it is charged I'll unhook the charger and check the battery tomorrow morning.

    The booster battery was a good test. It showed me that if you need to boost a Prius aux battery it will do it.

    Although when the zero degree cold flattened my battery after 3 days the Schumacher charger wasn't up to the task. It took a fully charged auto battery and booster cables hooked to the fuse box connection to make it start.I wanted a quick start though.

    But if the battery is just low it will work.

    It didn't make the mpg of the Prius any better though.
     
    #27 CrazyLee, Apr 11, 2015
    Last edited by a moderator: Apr 11, 2015
  7. bisco

    bisco cookie crumbler

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    how old is your battery?
     
  8. CrazyLee

    CrazyLee Member

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    I don't have a clue how old it is. I'll run out to see if it has a warranty date on it.
    I didn't see any date. Heck, since the battery is in the back, it looks too clean to be bad! LOL

    My Schumacher SC1200A charger said 100% charge with 12.9 volts.
     
  9. bisco

    bisco cookie crumbler

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    okay, when you said you were amazed that they die like they do, i thought it was fairly new.
     
  10. CrazyLee

    CrazyLee Member

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    The battery is toast. It read 12.2 V and 57% charge this morning. I'm recharging it again this morning.

    What is better, the OEM or Optima battery?
     
  11. bisco

    bisco cookie crumbler

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    hard to say, because we don't have any stats. the oem's are great if you don't drain them. if you go for optima, check the voltage when you receive it, and if it's under 13 volts, put it on a smart charger before installing.
     
  12. dolj

    dolj Senior Member

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    OEM or Exide FP-AGM51JIS. As with all batteries, check the voltage when you receive it and fully charge it before you install it.

    As for Optima Yellow top, they seem to not be worth what they once were, proceed with caution. Lots of reports of them arriving in poor states of charge, not lasting as long as they should, etc.
     
  13. CrazyLee

    CrazyLee Member

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  14. Easy Rider 2

    Easy Rider 2 Senior Member

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    IF it physically fits AND the posts are the right size, I think that is an excellent choice.
    Please keep us posted.
     
  15. Britprius

    Britprius Senior Member

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    Something not mentioned above is the Exide battery is guaranteed for 4 years full replacement. It also has much greater AH capacity than the Optima.
    Some cars in the US without SKS use a smaller battery and battery tray. This tray will need to be changed to accommodate the larger capacity battery. This is also true if going to the larger battery fitted by Toyota to models fitted with SKS system.

    John (Britprius)
     
    #36 Britprius, Apr 13, 2015
    Last edited: Apr 13, 2015
  16. ktyler2

    ktyler2 Junior Member

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    I found a direct fit Bosch at Pep Boys for $189.99, installation included. You can use coupon code SECRET35 and it will take 35% off. They're installing it for me now as I type this. Here is the picture of the battery, as well as my receipt. I paid $131 out the door. Unreal deal if you ask me!!

    image.jpg

    image.jpg
     
    #37 ktyler2, Apr 13, 2015
    Last edited: Apr 13, 2015
    Daves09prius likes this.
  17. css28

    css28 Senior Member

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    Excellent!
     
  18. CrazyLee

    CrazyLee Member

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    Easy Rider 2
    Quote:
    The color is about perfect too, and just starting to darken a bit.
    The color of engine oil from one brand to another tells you NOTHING.

    It usually is an additive or two that causes the change in color and not the base oil itself.

    I was comparing the color from when I poured it in to the color of the oil is now. So far several thousand miles on it it has darkened some more. I'll keep an eye on it. It did need a tiny of oil amount the last time I checked it. I added a cup more oil. LOL
     
  19. CrazyLee

    CrazyLee Member

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    Last weekend I changed the aux battery. I got the longer SKS battery and I had to cut the battery mount plate down to allow the battery to fit. That is the part that rises up to keep the battery from shifting towards the front. A hack saw does a nice job. It took about 2 hours, maybe less since It was a really nice day and I wasn't keeping track.

    The old battery ended up with 12.16 volts when I pulled it out. I checked the new one and it was 12.5 volts and I hooked up the Schumacher charger to bring it up.
    The charger immediately said 100% charged and 12.9 volts. So Installed it.

    I always got lots of sparks when I hooked up the ground wire. Then when I started it the dash lit up really nice. Now I know a better way. First unplug the power cable from the battery. ( Thats how I cleared the dash lites.) It is the larger plug towards the left of the two on the battery cable connector. The release tang in on the bottom. Now when you mess with the ground wire no sparks and no lit up dash.

    When I was loosening up the bolts that held the brake module the front bolt removed very hard. The back bolt was completely rusted up and the head broke off. I didn't drill it out and just left it alone. I did use a liberal dash of anti seize compound on all the bolts to make sure that they will come out again.

    I found out that the spare tire area and the battery pocket were both half filled with water. I think the hatch gaskets don't work that well. I took a 3/16th drill bit and drilled both large rubber plugs in the spare tire area and drilled a hole through the battery pocket bottom through one of the large holes there. Gotta keep the water draining. Most cars have drain holes, maybe the designers were very sure that the hatch gaskets would always work. :ROFLMAO:

    I'll check voltages before I head off to a ballgame soon and check the fuel mileage.
     

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    #40 CrazyLee, Apr 20, 2015
    Last edited: Apr 20, 2015
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