Which Manual Transmition Fluid for K series

[45SET]

Royal Purple is the only "aftermarket" oil that hasn't caused a argument.

[PolitoHood]

FYI

Royal Purple - Max Gear

Max-Gear® is recommended for use in truck, motor home / RV, and automotive front or rear differentials, manual transmissions and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid.

Max-Gear® is an ultra-tough, high performance, GL-5 automotive gear oil designed to provide maximum protection to heavily loaded gears while maximizing power output throughout the drive train. It outperforms other GL-5 gear oils because it combines the highest quality synthetic oils with Royal Purple's proprietary Synslide® additive technology.
Max-Gear® makes gears run smoother, quieter, cooler and longer without overhauls.


Red Line - Synthetic ShockProof™ Gear Oil provides unequalled protection for high-performance differentials and
transmissions which are heavily loaded or which see shock-loading. This revolutionary lubricant is completely different
from conventional lubricant technology in several ways. The viscosity characteristics are significantly improved. Gear
teeth need high viscosity at high temperatures to prevent metal-to-metal contact and a low viscosity when cold to reduce
fluid friction. The ShockProof™ chemistry significantly reduces the thinning effect of high-temperatures. The Heavy can be
rated as a 75W250 Gear Oil, but has the lower internal fluid friction of an SAE 75W90. The LightWeight can be rated as a
75W140 Gear Oil, but has the lower internal fluid friction of an SAE 30 motor oil. The SuperLight can be rated as a 70W90
Gear Oil, but has the lower internal fluid friction of an ATF. These ShockProof™ lubricants provide much greater viscosity
in the thin layers between the gear teeth, but have very low internal fluid friction, which means very little power loss for the
protection achieved. ShockProof™ Gear Oil has a 40% lower coefficient of friction and 250% the load-carrying capacity
compared to conventional gear oils, which means that metal-to-metal friction is greatly reduced. Temperature reductions
between 25°F - 75°F are common in circle track, road racing, and off-road racing. Improved durability in high-performance
use is the primary benefit of the Heavy ShockProof™ and along with the improved durability is an improvement in
efficiency, but if further improvements in efficiency are desired, and durability is not a major concern, LightWeight and
SuperLight ShockProof™ can be used. The cushioning effect of the ShockProof™ chemistry allows the use of one of the
lighter viscosities in many performance applications with little sacrifice in durability. Red Line ShockProof™ can be used in
conventional, limited-slip, or locker differentials. Red Line ShockProof™ is designed for use in competition differentials
and transmissions.
Typical Properties
Heavy
ShockProof
Brookfield Viscosity,
Poise 1400 @ -40°C
Pour Point, °C -42
Pour Point, °F -45
Flash Point, °C 224
Flash Point, °F 435
Density, g/cc, 15°C 0.94
Calcium, %wt 4
Phosphorous, %wt 0.2
Molybdenum, %wt 0.6

[Chi]

I may seem strange, but the reason im asking all these question is because an opportunity has come up that will enable me to score some free oil ie. (only Redline or Royal Purple).
So i wanted peoples opinions. But that said Its a daily driver with 27,000ks on it with no Issue.
So if there isn't a clear answer i will have to pay for the MTF 06 FTL!!!!

Sometimes free stuff can lead to problems.

But if you have been using MTF and have had no problems, then I dont see the need to go to a different brand.

But in your case its up to you if you want to save some money for free oil which may or may not cause problems down the track.

[PolitoHood]

Sometimes free stuff can lead to problems.

But if you have been using MTF and have had no problems, then I dont see the need to go to a different brand.

But in your case its up to you if you want to save some money for free oil which may or may not cause problems down the track.

Thanks Chi I am now more confused than ever LOL

[wuism]

i think you should stick to the MTF unless ur gears are notchy and crunch frequently.

[supersteve]

hmm when i picked up my ep3 couple months back my gear changing was awesome and smooth, now its gone a bit notchy. How often do u blokes change ur gear box oil ?? Plus i think i need to flush it out because i probably got a bit of shavings in there for when ive crunched my gears haha yes im noob !

[Chi]

You should get a magnetic plug while you're at it steve.

[daz]

EL_DC5; I will be changing my gearbox oil soon (maybe even today). I have decided to try out redline....if you can hold out for a little longer then I can let you know how it goes. Note that the reason I am changing is because my 3rd gear pop out has been occurring more and more in the past month or so.

[tinkerbell]

You should get a magnetic plug while you're at it steve.

the B series gearbox already has magnets, i'd be hoping the K series one does too?

[supersteve]

aw cool so mine should have some magnets

So how often do u guys change ur gear box oil ??

[rayDC2R]

EL_DC5 you gonna hook us up with free oil?
Can you just get the free oil for now and just put Honda MTF for now?

[tinkerbell]

So how often do u guys change ur gear box oil ??

every 10'000km or when i open it up (whichever comes first)

[supersteve]

every 10'000km or when i open it up (whichever comes first)

nps thanks tinker. Ive almost reached 10,000km so ill get it changed next service with Honda MTF 06 oil

Hey does anyone notice a different from the day they put in the new oil to 10,000km later ?

[TeMp]

the B series gearbox already has magnets, i'd be hoping the K series one does too?

Nopes.

[RichyR]

the B series gearbox already has magnets, i'd be hoping the K series one does too?

Cool, saved me a few bucks there Dave because i was going to get a magnetic bolt for it