can i put fully synthetic engine oil in gearbox

ntwdavid · Post by **ntwdavid** » Sat Oct 21, 2006 10:28 am

Hi Guys
I have a year 2000 lanos 1.6 sx manual 5 door car can i put fully synthetic engine oil in gearbox and how may liters it consume?

Thanx

chronoti · Post by **chronoti** » Sat Oct 21, 2006 2:20 pm

not a good idea!

use gm synchromesh! they have a syntec ver for the vetts. that or amsoil produces one, i have no idea where you are or where the hell sells them they are mainly caried by small shops or you order it online. or the gm one from your local gm dealer.

oh amsoil rates it as 5w-30 actualy it says 5w-30 on the bottle

daewoomofo · Post by **daewoomofo** » Sat Oct 21, 2006 4:06 pm

i am useing synthetic dextron 3 transmission fluid (auto tranny). if you can find the exact fluid in synthetic then it shouldnt hurt any thing.

Nemasys · Post by **Nemasys** » Sat Oct 21, 2006 9:43 pm

Yeah, but you can't really flush the fluid from a manual tranny and put synthetic in? How would that be accomplished?

daewoomofo · Post by **daewoomofo** » Sat Oct 21, 2006 10:12 pm

if its a synthethic/non-syn. blend it wont hurt any thing

ntwdavid · Post by **ntwdavid** » Sun Oct 22, 2006 5:52 am

Nemasys wrote:Yeah, but you can't really flush the fluid from a manual tranny and put synthetic in? How would that be accomplished?

last time the mechanic drain my gearbox oil and put in normal cheap oil. my car immidiately feel better in term of gear shifting ,faster pick up, lesser vibration and more quiet. So i 'm thinking of putting better oil(synthetic) in the gear box next time.

Guys should i try or not? will it hurt my engine?

daewoomofo · Post by **daewoomofo** » Sun Oct 22, 2006 5:25 pm

i say go for it, like i said i have synthetic in my auto, i didnt do full system flush so its a syn and non-syn blend, it feels nicer to me

MMamdouh · Post by **MMamdouh** » Sun Oct 22, 2006 5:27 pm

Nemasys wrote:Yeah, but you can't really flush the fluid from a manual tranny and put synthetic in? How would that be accomplished?

if the tranny fluid is hot enough... you can simply remove the tranny pan and let the fluid drain out, i did that to mine and remeber to get a new pan gasket for this job.

MMamdouh

MMamdouh · Post by **MMamdouh** » Sun Oct 22, 2006 5:31 pm

ntwdavid wrote:last time the mechanic drain my gearbox oil and put in normal cheap oil. my car immidiately feel better in term of gear shifting ,faster pick up, lesser vibration and more quiet. So i 'm thinking of putting better oil(synthetic) in the gear box next time.

Guys should i try or not? will it hurt my engine?

normal cheap oil as in engine oil or tranny oil??

i am not a fan of messing with tranny fluids so stick with what the manufacturer recommends. i once put PWS fluid in the tranny and the guys here gave me hell for doing that so i draned it after two days of use... can consider that as tranny fluid flush if i may but out of spec fluid will cause damage to your tranny - even if it feels good at first - as it is not designed to withstand such gear pressure in the tranny.

MMamdouh

ntwdavid · Post by **ntwdavid** » Fri Oct 27, 2006 10:34 am

MMamdouh wrote:
ntwdavid wrote:last time the mechanic drain my gearbox oil and put in normal cheap oil. my car immidiately feel better in term of gear shifting ,faster pick up, lesser vibration and more quiet. So i 'm thinking of putting better oil(synthetic) in the gear box next time.

Guys should i try or not? will it hurt my engine?
normal cheap oil as in engine oil or tranny oil??

i am not a fan of messing with tranny fluids so stick with what the manufacturer recommends. i once put PWS fluid in the tranny and the guys here gave me hell for doing that so i draned it after two days of use... can consider that as tranny fluid flush if i may but out of spec fluid will cause damage to your tranny - even if it feels good at first - as it is not designed to withstand such gear pressure in the tranny.

MMamdouh

i also not sure what oil he put but the tranny is smooth and quiet till now ,
thank i think i stick to that kind of oil next time.