Hey ppl i need help i need to know what oil to use as i want to do an oil change. The heads been rebuilt abotu 30 000 klms ago. The manual says to use 20W/40 Mechanic says 15W/40 is this thinner. WHat should i do? eg brnads aswell. Comming form someone that has been in the same situation with a vl commodore.
Any help would be appreciated
Quote:
Originally Posted by the_amazing_spidey
i use castrol gtx2 which is 20w/50. and yes 15w/40 is thinger than 20w/40
whats diff with oil hows the 1st numba?? and last numba how does it work??
so 20W/40 is completely different viscousity to 15W
What teh second numbers for leik whats diff between 20W/40 to 20W/50?? HElp i need to know what oil to use
Pretty sure the first number is when the engine is cold to how thick and when it heats up it becomes 40 or 50w.
I could be wrong but on my vlct I think that its 10 - 40 or something fully synthetic so when its cold it gets lube and when its heats up the oil thickens.
i put straight 50 protect the rings more so the motor last longer for the future and quiter and better starts on cold days, and remember its a 19 year old car aswell so think about it
Quote:
Originally Posted by VLTAMR
i put straight 50 protect the rings more so the motor last longer for the future and quiter and better starts on cold days, and remember its a 19 year old car aswell so think about it
WHat you meen str8 50?? you meen 20W/50
i use GTX2 20w/50 in my VL as well... if its good enough for n/a mercedes benz's (specialised merc mechanic here uses it in all the mercs he works on), its good enough for my vl
Some original photos have not been recovered yet.
Okay i decided what to do, im using penzoil multi-vis 20w/50
As this is a mineral based oil thats what is needed for a 18 y.o car you dontneed expensive sythetic oils as they are no good for our old cars anyway has anyoeneben using penzoil multi-vis 20W/50 on there vl 3L n/a 6?? if so what use think?
pennzoil multi-vis is fine. Remember, as your car gets older, it loses compression. Sometimes you need a thicker oil to up it and slow up the oil burning.
I use Magnatec. Ive been using it for ages. I have used alot of oil brands and found Magnatec to quieten the VL motor. I do a service (Filter and oil) every 5000km. In a car manual from the local car shop it recommends Magnatec for the VL too
Ive used Castrol, Penzoil and Penrite and found the Magnatec to do its job quite well.
Id never use synthetic unless it was a fresh rebuild and even then I wouldnt use the Mobil1 as its 5w/50. Its like water when its cold. Good oil but I wouldnt use it in an older type motor
And to the person using straight 50 weight oil, Id hate to see what its doing to the motor when cold!! Maybe if you were in a warm climate you could try the Penrite HPR 30 - (40w/70) That oil I used to run in my 350 with good results when I was in Darwin
Quote:
Originally Posted by Sixes350
I use Magnatec. Ive been using it for ages. I have used alot of oil brands and found Magnatec to quieten the VL motor. I do a service (Filter and oil) every 5000km. In a car manual from the local car shop it recommends Magnatec for the VL too
Ive used Castrol, Penzoil and Penrite and found the Magnatec to do its job quite well.
Id never use synthetic unless it was a fresh rebuild and even then I wouldnt use the Mobil1 as its 5w/50. Its like water when its cold. Good oil but I wouldnt use it in an older type motor
And to the person using straight 50 weight oil, Id hate to see what its doing to the motor when cold!! Maybe if you were in a warm climate you could try the Penrite HPR 30 - (40w/70) That oil I used to run in my 350 with good results when I was in Darwin
Howd the pennzoil multi-vis 20W/50 go they reccomoned that for vl calais 3L on their site. what would pennzoil Gt eprformance do? its 20W/50 aswell is it mineral based what oen should i use
