hey sorry to post a thread that has already been posted but a guy i no thats a machanic runs penrite 40 through his vl so for the last year i have run it too but it seems that all you guys are runnin synthetic or semi synthetic.I have a fresh rebuilt motor with forgies gapless rings cam highflowed turbo ect 315hp on 8 pound what do you guys recomend thanx ryan Some original photos have not been recovered yet.

Mobil 1 bro 5W by 50W... Some original photos have not been recovered yet.

hmm i used mobile one but it made the lifters tap so i switch over to HPR40 best move i ever made althoug ive been told that theres a good valvoline 1 aswell

Mobil 1 all the way.

Repco 10w40 semi synthetic here.

I use Mobile 1 in the VL and Penrite HPR 40 in my V8's that oil is like honey real thick ideal for older engines with bigger clearances.

Penrite HPR 30 here.

use a mineral oil to run the motor in for the first 10,000 and then use a synthetic oil...

I thought you only had to run the motor in for 1000 kmp/h....

when i had my engine done i was told 10,000 mineral then use whatever i wanted.

mobil 1 all the way

mobil 1 5W 50

I know that mobil make a 20lt version of mobil 1 5w 50 but I haven't seen it for sale. Does anyone know place that sells it?? Cheers!!

ask repco or someone who supplies mechanics..

Quote: Originally Posted by Sadistik use a mineral oil to run the motor in for the first 10,000 and then use a synthetic oil... I wouldnt say as far as 10k, but definately use mineral for the run-in. Also, drop and replace oil VERY regularly for the first few thousand k's. Then Mobil 1.

HPR40 is very good.....

Extra virgin oil. But seriously, HPR 40

whats the benefit of using HPR40 over HPR30 ? I'm using, well was using, hpr30... now it has mobil xhp plus in it...

HPR30 is a 20W-60 Grade Oil HPR40 is a 25W-70 Grade Oil HPR40 seems a bit thick for my liking, maybe in a big bore v8 or a high mileage RB30 with major blowby problems, but wouldnt be to good on cold starts. All HPR oil viscosities seem a bit dodge to me... Mobil XHP is a 20-50W Mineral Oil. Nice and cheap, but if i had a Turbo I would be trying to use atleast a Semi-Synthetic Grade for a bit more protection. Personally I usually run a 15-50 Semi Synthetic, great price and good viscosity for an older RB30 Turbo. If I had a fresh engine I would run the Full Synthetic Mobil 1 5W50 though... Mick

May i ask why a lot of you guys are using Mobil 1? Is it suited to the turbo engine or just the reputation i.e. Mark Skaife/Holden Racing Team, Peter Brock...?