bought and s2000 today, your preferred oil?

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Originally Posted By: donnyj08
Thanks INDYMAC. i did do quite a bit of reading on the s2k site. i plan to change out the diff oil today possibly. should i go with M1 75w90 which is popular over there, or step up and run a 75w140?

also i plan to change out the tranny fluid with the honda MTF in the next week or two. along with the air filter ect.

i will write down your suggestions and work down the list each weekend until i can get it in tip top shape! thanks again everyone.





I'm not a big fan of 75W-90 in the rear diff. If you want to use M1, then go with the 75W-140. It will shear to a 90 or 110 soon after, so there is some safety margin.

Try the 10W-30. If you park outside in the winter and have trouble starting, then switch to a 0W-30 or 0W-40. There are lots of great choices out there.

Get used to the car before you become too adventurous. A money shift (mechanical over-rev) can ruin your new engine. Be careful.
 
Originally Posted By: JavierG
If Honda recommends 10W-30 why would you go to a 0W or any other weight?? They backspeced some of their other vehicles (for example: for my Ridgeline originally Honda only recommended 5W-20 but was backspeced to also allow 0W-20) but the S2000 has remained at 10W-30.

https://bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2251258

donnyj08, congrats on a great find!!


Honda assumes you would be using conventional 10w-30, which is this most shear stable in Honda's mind. By using a synthetic, you are now exceeding the requirements of the car. A 0w-30 or 5w-30 synthetic can provide the same or better shear stability than a conventional 10w-30 with all the benefits of a higher viscosity index.
 
Originally Posted By: donnyj08
Thanks INDYMAC. i did do quite a bit of reading on the s2k site. i plan to change out the diff oil today possibly. should i go with M1 75w90 which is popular over there, or step up and run a 75w140?

also i plan to change out the tranny fluid with the honda MTF in the next week or two. along with the air filter ect.

i will write down your suggestions and work down the list each weekend until i can get it in tip top shape! thanks again everyone.


I would use 75w-90 and change it once a year. The small capacity beats the oil up. Keep the oil fresh and the correct 90 grade will be adequate. Also note that using a thicker 140 grade fluid creates more drag on the diff slowing you down. Now if you plan on tracking the car on a road course... 140 grade would be better.
 
If you're changing the manual tranny and rear diff,Amsoil all the way! If the tranny specs GL4,use Amsoil MTG. For the rear diff,use Amsoil AGL 80W90 GL5.
 
Originally Posted By: aquariuscsm
If you're changing the manual tranny and rear diff,Amsoil all the way! If the tranny specs GL4,use Amsoil MTG. For the rear diff,use Amsoil AGL 80W90 GL5.


Redline > Amsoil

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Originally Posted By: randomhero439
Originally Posted By: JavierG
If Honda recommends 10W-30 why would you go to a 0W or any other weight?? They backspeced some of their other vehicles (for example: for my Ridgeline originally Honda only recommended 5W-20 but was backspeced to also allow 0W-20) but the S2000 has remained at 10W-30.

https://bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2251258

donnyj08, congrats on a great find!!


Honda assumes you would be using conventional 10w-30, which is this most shear stable in Honda's mind. By using a synthetic, you are now exceeding the requirements of the car. A 0w-30 or 5w-30 synthetic can provide the same or better shear stability than a conventional 10w-30 with all the benefits of a higher viscosity index.

So why didn't they show 0w-30 on their chart since it doesn't come in conventioanl? Are you sure they are assuming that a conventional will be used? Or are you assuming that they are assuming?
 
Originally Posted By: JavierG
Originally Posted By: randomhero439
Originally Posted By: JavierG
If Honda recommends 10W-30 why would you go to a 0W or any other weight?? They backspeced some of their other vehicles (for example: for my Ridgeline originally Honda only recommended 5W-20 but was backspeced to also allow 0W-20) but the S2000 has remained at 10W-30.

https://bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2251258

donnyj08, congrats on a great find!!


Honda assumes you would be using conventional 10w-30, which is this most shear stable in Honda's mind. By using a synthetic, you are now exceeding the requirements of the car. A 0w-30 or 5w-30 synthetic can provide the same or better shear stability than a conventional 10w-30 with all the benefits of a higher viscosity index.

So why didn't they show 0w-30 on their chart since it doesn't come in conventioanl? Are you sure they are assuming that a conventional will be used? Or are you assuming that they are assuming?

Honda S2000 2004 Owner Manual:

"Always use premium-grade detergent oil displaying the API Certification Seal. ...

An oil with a viscosity 0f 10W30 is preferred for optimum fuel economy and year-round protection in your Honda. You may use a 5W40 oil if the temperature in your area goes below 0F(-20C)

Synthetic Oil
You may use synthetic motor oil if it meets the same requirements given for a conventional motor oil: it displays the API Certification Seal and it is the proper weight. You must follow the oil and filter change intervals given on the maintenance schedule."

Clearly conventional is recommended and synthetic is an option.
 
Originally Posted By: JavierG
Originally Posted By: randomhero439
Originally Posted By: JavierG
If Honda recommends 10W-30 why would you go to a 0W or any other weight?? They backspeced some of their other vehicles (for example: for my Ridgeline originally Honda only recommended 5W-20 but was backspeced to also allow 0W-20) but the S2000 has remained at 10W-30.

https://bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2251258

donnyj08, congrats on a great find!!


Honda assumes you would be using conventional 10w-30, which is this most shear stable in Honda's mind. By using a synthetic, you are now exceeding the requirements of the car. A 0w-30 or 5w-30 synthetic can provide the same or better shear stability than a conventional 10w-30 with all the benefits of a higher viscosity index.

So why didn't they show 0w-30 on their chart since it doesn't come in conventioanl? Are you sure they are assuming that a conventional will be used? Or are you assuming that they are assuming?


As HTSS stated, its conventional. To add on, the only Honda i can think of that requires synthetic oil is the Acura RDX 2.3L Turbo. It needs an oil that meets Honda's HTO-06 spec. Currently even the 0w-20 Honda's are filled with synthetic-blend.
 
Originally Posted By: HTSS_TR
"Always use premium-grade detergent oil displaying the API Synthetic Oil
You may use synthetic motor oil if it meets the same requirements given for a conventional motor oil: it displays the API Certification Seal and it is the proper weight. You must follow the oil and filter change intervals given on the maintenance schedule."

Clearly conventional is recommended and synthetic is an option.


That`s exactly what my Z`s owner`s manual says,"You may use synthetic based oil in your Nissan,but don`t mix synthetic and conventional together".
 
Great car.I had one for about a year.I have a hardtop if your intrested.I only changed the oil in mine once and used castol edge 10w/30. On the thin side of that oil weightso the engive reved more freely.
 
here are some pics on photobucket. the cars is filthy in the pics, i need to spend a day on the wheels and detail the interior.
http://s1289.beta.photobucket.com/user/donnyj08/library/S2K


i drove it to Cincinnati today on a little trip, i got 28mpg on the last tank of 93 octane. im impressed. there was only a couple short vtec hits. Im being gentle an keeping it out of vtec until i change the differential fluid and MTF tomorrow or monday evening.
 
thanks, aquariuscsm its kind of different. a dark almost grey silver. its growing on me for sure!

Any of you S2000 guys use GM Syncromesh in the tranny? there is lots of talk about this at S2K.com
 
Last edited:
I have a my03 with 47000 miles on it, runs great,after trying Honda and GM tranny fluids I settled on Redline MTL, shifts smooth in all weather,it has about 25000 miles on it and will get changed at 30000 miles.Mine is Suzuka Blue and still has the original top. Enjoy!
 
thanks guys! does anyone know if i can buy the crush washers for the differential at and auto parts store? Can they be reused once if they aren't too thin?

i only ask because my honda dealer is and hour away and they have to order them... I really dont want to wait a week to change the fluid. i have no idea how old the fluid in it is.
 
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