XR805

Anyone recommend a best oil and thickness to use for a 5 ltr V8.

Mr Sparkle

Mobil-1 seems to have worked best for me so far.

__________________
Now powered by PCOTY WINNING SR20DET - 32% engine weight, 37% capacity, 50% cylinder count
Clicky clicky here for previous ride! I still miss her!

eb_5litre

I use Sheel Helix Plus.... dont know if i'm all together happy with it though.

__________________
Signatures are for poofs !!

1993 EBII Fairmont Ghia 5.0L Wagon,
Lowered, Tinted, 17" Speedy Ravens & 2.5" Sports Exhaust.
( 1 of 26 built )

AND

1985 Telstar TX5 Turbo, stock as a rock.

ebxr8240

Yes but there are different viscosity in them now..v8 I try thicker oil 15/50 but twin cam 4 turbo 5/ 40 or there abouts..NOT all shops have all the thickness's of oil in each brand..Esp synthetic..
I notice that the oil press doesn't read high when cold nor low when hot with synth..

Use Shell [it's usually cheaper] or Mobil,B.P I have heard is good but no one push's it ...Castrol ??? Well I don't like the idea of little magnets inside engine....Hahaha

__________________
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
.
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...

Mr Jucy

I use Royal Purple but it's pretty pricey

ls1vx

A topic of great debate, however not all V8 engines respond the same to the same oil beleive it or not. There are many debates about mineral vs synthetic so this is point one.

What you must consider in an oil are viscosity, shear factor, flash point and temperature ignition ( not that important in oz) etc the list goes on.

It also depends on how you drive and what environments, do you race, or do the 1/4 or thrash the guts out of your car. What mods do you have, is it stroked, Supersharged etc. This all has a bearing on what oil to use.

The LS1 is fussy re: oil and this is a seperate topic, needless to say the oil I use may not suit your motor. My car is modded and therefore is under higher tolerance and I drive it hard, so I use a premium synthetic that is light weight with a higher shear factor, because what the factory recommends is no longer appropriate.

All I can say is look at these threads and make your own mind up what is best for your individual needs.

http://www.fernblatt.com/longhurst/engineoil_bible.html

http://www.canadiandriver.com/articles/jk/at_001121.htm

http://www.cpinternet.com/~ennyman/syn-hist.html

http://www.geocities.com/MotorCity/7177/oil.html

ls1vx

I don`t know whether I have posted this before for ya, but it is the cheapest RP I`ve found.

http://www.vpwmailorder.com/ieframeset.html

longjohn1

i use shell helix plus 5w/40w put you got use the ford oil filter

Mr Jucy

I live near the importers do i just buy it strait from them

ls1vx

If you ring them you may be able to pick it up and save the shipping cost.