Best weight oil for 93 Civic VX engine/tranny for Ecomodding ???

[radioranger]

personally with those miles I'd stick with the stock weight oil. I had friends with this car and they seem to need plugs every 15 k or so for best mileage so try that if you need to. made quite a difference.

[dlb]

Originally Posted by arcosine

0w20, unless your oil light goes on when idleing.

i was asking about manual trans oil. i'm not positive but i don't believe the vx has a trans oil pressure light.

also, i personally wouldn't take a chance running such light engine oil that the oil light may come on at idle. insufficient engine lubrication can create costly engine repairs that would offset any minimal gains in fuel economy. once i finish my input shaft bearing and get this vx on the road, i will stick with stock 5w-30 engine oil but i will be running 5w-30 synthetic engine oil in the trans.

[hondaguy72]

Ive had good success with using one quart of synchromesh and two quarts of oil.

[California98Civic]

Originally Posted by dlb

i believe i saw one member on this forum mention using 0w-30 synthetic in their VX trans and were happy with it but wanted to confirm that.

I followed a forum member's experience and experimented with Royal Purple 5w30. It seemed to work well in my 1998 DX transmission. When I swapped to the 1993 CX transmission, I stuck with the 5w30. Shifting was harder, and I at first thought maybe I had not been so lucky and got a transmission that, while operative, had chunkier shifting quality than my stock. I was wrong. I put 10w40 synthetic in yesterday and it's like a new transmission, as good or better than the DX was. And that's why I swapped to a 93K mile transmission anyway (in addition to hoped for FE and cruising speed benefits from the fifth gen CX gearing).

I'm in a little disbelief at the difference.