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Author Topic: transmission oil  (Read 3070 times)

Offline orbos

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transmission oil
« on: April 30, 2004, 04:39:49 PM »
pips,

i'm pondering on changing my transmission oil dahil pag tumatagal ako sa biyahe esp if stuck on traffic parang may vibrations akong nararamdaman w/c i think is from the tranny. ???

so i'd like to know if there are good brands for this oil...btw, the last time i had the transmission oil change, the service center only gave me the oil spec & they got it from a bulk dispenser w/c doesn't have any brand name.

hoping for advise. ::)

Linkback: https://www.autoindustriya.com/talkboard/oil-and-lubrication/29/transmission-oil/13136/

Offline paj4x4

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Re:transmission oil
« Reply #1 on: May 01, 2004, 11:07:19 PM »
what is your vehicle?  2wd or 4wd?  check the owners manual and get the required gear oil specs for your car.  if it's a 4wd vehicle you will need to put hyphoid gear oil in the drivetrain.  

most gear oils sold in in petrol shops are not hyphoid gear oil...usually sae 90 rating.  castrol hypoy, mobil 1, and redline gear oils are examples of branded hyphoid gear oils.  

hope this helps.

Offline johnqpublic318

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Re:transmission oil
« Reply #2 on: May 02, 2004, 12:58:00 AM »
what is your vehicle?  2wd or 4wd?  check the owners manual and get the required gear oil specs for your car.  if it's a 4wd vehicle you will need to put hyphoid gear oil in the drivetrain.  

most gear oils sold in in petrol shops are not hyphoid gear oil...usually sae 90 rating.  castrol hypoy, mobil 1, and redline gear oils are examples of branded hyphoid gear oils.  

hope this helps.

Most vehicles (except some heavy trucks) will have hypoid drive axle gears whether 4x2 or 4x4.

SAE 90 is the viscosity rating and is not related to hypoid gear compatibility.  

Hypoid" is not really a question of oil, so much as a question of gearcutting. Old (1920's) rear axles used straight bevel gears to form the crownwheel and pinion.

These had two disadvantage, the pinion shaft meets the crownwheel on its central axis, and the straight cut
gears are noisy. By using a more complex "hypoid" gear tooth shape (if you look at a pinion, the teeth appear twisted) these problems can be addressed. The more gradual engagement of the teeth along their length
reduces noise. By careful design of the geometry the pinion can be made to mesh  below  the axis of the crownwheel. As the centre height of the crownwheel is fixed by the wheel height, this allows the propshaft to be lowered relative to the car body, giving a clearer
floorpan and lower centre of gravity for better cornering.

Hypoid bevels are now universal in this application.

Because of the sliding contact that hypoid gears make, their hydrodynamic contact pressure is higher. To be suitable for use with hypoid gears, a lubricant must be capable of resisting high pressures.

Oils with "EP" ratings (Extreme Pressure) such as EP90  are required.

Some brands describe themselves as "hypoid" instead, a term which is synonymous with EP. GL-5 is a formal API standard for this type of oil.

A lot of gas Philippine gas station gear oils are GL-4 but most modern vehicles will require GL-5.


Offline johnqpublic318

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Re:transmission oil
« Reply #3 on: May 02, 2004, 01:01:47 AM »
Not all manual transmissions use hypoid cut gears and not all require GL-5 SAE 90 gear oil.  Some manuals transmissions may require the use of ATF instead.   Also, I would avoid SAE140 for transmission use.

Check your owner's manual.

Offline orbos

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Re:transmission oil
« Reply #4 on: May 04, 2004, 07:38:47 AM »
thanks peeps! looks like i'll have to go with branded oils ;)

Offline speedyfix

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Re:transmission oil
« Reply #5 on: May 05, 2004, 04:00:53 AM »
if there's vibration baka di yung oil yung problem pero yung tranny support.  ???
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Offline mz_danni

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Re:transmission oil
« Reply #6 on: May 05, 2004, 06:54:17 AM »
the problem might be the transmission mount/bushing and not the oil.
Its called Individual Differences.

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Offline carbon

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Re: transmission oil
« Reply #7 on: October 28, 2007, 10:21:36 PM »
yah! maybe ung supoport from end to end sa may tranny ng transmission
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Offline stayTUNED

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Re: transmission oil
« Reply #8 on: November 14, 2007, 12:56:58 AM »
so what is the best way for you to find out if you nead to change the transmission oil?  :o

Offline -jason-

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Re: transmission oil
« Reply #9 on: November 14, 2007, 11:07:57 PM »
usually every 40,000kms.  or you can have it checked at the gas station with a lifter to check the condition of the fluid.

Offline speedyfix

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Re: transmission oil
« Reply #10 on: November 18, 2007, 11:54:05 AM »
just replace it at specified intervals. also use the correct fluid as specified by the manual.

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