MOPAROFFICIAL
Oogliboogli
Too heavy?? who decides that?Sorry guys I’m having technical difficulties here. Purchased matching #s Dart Swinger 340 4 years ago. Lots of documentation with car. Except for engine. Hand writ note saying “bored 30 over, hydraulic H cam. Purple bigger, compression ratio 10.5:1” I’ve been running VR1 20w50 based upon recommendation of local speed shop, but recently was told that oil was too heavy. Thanks guys!
Tell them they can be a minimalist with their own crap. 20 when cold and up to 50 when hot probably in the middle mostly .
Factory, back when we had GOOD OIL , said straight 30 weight oil was what they designed their clearances around.
Straight 30....
I've run 10 30w, 20 50w, 5 30w syn, non Syn, para syn, etc...
After trying all that stuff over the years the only thing that seemed to make a difference was the brand of oil. Regular off the shelf synthetic/conventional oils suck , no matter how heavy....the viscosity does not hold up to heat.
All you are going to mostly get here are opinions.. and like assholes...most stink.
Soooo run what ever weight you think you should. Just remember that unless you use a designer oil ...it will turn to water ,damn near , after long freeway trips and hard wot back to back blasts...so you might consider more viscosity is better than less..