JDM Diesel

<<<<

Senior Member
I was looking through 2004 Hilux Surf Japanese owners manual and found that it's Diesel engine has 2 batteries. Why, any ideas?
 
Register to hide this ad
Diesel Batteries


Correct! It takes a lot more heat to get diesel fuel to ignite than it does for gasoline. Remember that diesel engines work on compression and they don't have spark plugs to ignite the fuel/air mixture in the combustion chamber.

Diesel engines also (typically) use heavier motor oil - 15w40 in the case of Ford and International - which is very, very thick on cold mornings. Heck, it gets to resemble Aunt Jemima syrup!

With smaller diesel engines, the batteries have to warm up the glow plugs first. After that expenditure of cold cranking amps, there still must be enough juice left to turn over the crankshaft to get the whole mess moving.

When I last owned a diesel truck, it had dual 925-amp batteries. A lot of over-the-road semis will have three or even four batteries! It will take some serious energy to turn over an 11- to 14-liter truck engine, you know.
 
Diesel engines have a much higher compression ratio than gasoline engines.

Despite this, my TurboDiesel 4Runner came with only 1 battery.

I suppose they supply dual batteries to countries with cold weather, or that additional battery you saw was installed by the owner.
 
It has the space for an additional battery. I used it for the alarm siren.
 

Attachments

  • battery-small.jpg
    battery-small.jpg
    102.6 KB · Views: 1,661

I noticed that it has "TOYODA" stamped on the metal part (manifold?). Interesting!

Then again, wasn't the name of the family originally spelled that way?
 
Jeff Kleb said:

I noticed that it has "TOYODA" stamped on the metal part (manifold?). Interesting!

Then again, wasn't the name of the family originally spelled that way?

Yup, originally it was Toyoda. It was changed to Toyota, because it either had more or fewer strokes than Toyoda in Japanese and that number of strokes was more symbolic in Japanese culture.

Found this link while Googling:
http://www.mdzclub.org/articles/toyotaname.pdf
 

Members online

Forum statistics

Threads
278,307
Messages
3,554,054
Members
248,016
Latest member
Advally Service

Trending content

Back
Top