ok i jus bought a 78 sedan deville with hydros and the guy told me to put sae hd 30 motor oil in the pumps. Is this right? cuz everyone tells me its wrong  

wait for either fool, fundi or chris (69special wagon) 2 tell ya...  

yES  Wal-mart is the best.. HD-30 if you live in a decent climate. Now during the winter you can change to hydro oil. if you want. but they all cost about the same.. ND-30 or Hydrolics 32w at any farm store..    

nd (non detergent) 30 for summer nd 20 for winter always use non detergent only it doesnt eat all the seals throw a magnet in the tank to help catch debris change your fluid at least every six months  

Change every six months. hell by that time something will leak out...  

i luv sayin this - i told ya so...even tho u didnt contradict me....  

hey can you'll tell me how can i learn more about hydro system and to reinforce the frame and about da switchs?




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we could but we wont j/k .  either ask scoob, Chris(69wagon_special)or Fundi if i were you i'd ask Scoob  

I do not knwo ***