V8 eng oil change questions

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Originally Posted by PhilipA

AAAAARGH!
Another oil thread!
Started as the longest thread in history about a sump plug washer then morphed into another oil thread!

IMHO it doesn't matter what you use as long as you change it regularly in a V8. I have never looked for high zinc etc( but I guess have by coincidence used Valvoline 15-40 recently).

I pulled my cam at 200KK and it was worn a bit but really fine, and before I got the car the guy only changed at 10K for 67K of the car's life. I still havent got the crap off the bottom of the dipstick.
So don't stress , be happy!
Regards Philip A

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Wisdom is a wonderful thing.I like to be aware of what my actions are and in this instance it is in regards to a wise choice of oil for my beloved car that works hard for me and I want to put the right things into her so she's with me for a long time. Also Philip A it started with a question about oil as well as the plug washer.Sounds like you might be one of the lucky one's and have unknowingly just chosen a decent oil.I have been told by a couple of Land Rover Guru's up here to get a good oil with zinc in it and you are doing your engine a favour.
Cheers
Shane

But AFAIR there are lots of posts on this and in much more detail with additional expert input.
A search would reveal all.
Regards Philip A

Yes it has been done with lots of good info.Cheers

Can you get zinc as an additive?

FWIW I did over 150K in my D1 using HPR30, never used any oil between changes, and at 250K had no rattles or smoke.
I dont consider HPR to be any great shakes, it was changing it every 5K that made last,,(and thats 30 changes and I DONT remember buying any washers)

The bloody things probably still running around out in the goldfields;)

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Originally Posted by Pedro_The_Swift

FWIW I did over 150K in my D1 using HPR30, never used any oil between changes, and at 250K had no rattles or smoke.
I dont consider HPR to be any great shakes, it was changing it every 5K that made last,,(and thats 30 changes and I DONT remember buying any washers)

The bloody things probably still running around out in the goldfields;)

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HPR 30 has a higher zinc content that most :cool:

http://www.penriteoil.com.au/tech_pd...C%20LEVELS.pdf

Max zinc levels are mandated for certain viscosity values of oils. Penrite oils are exempt due to the fact that they don't follow normal ratings ie rather than 10/40 they make 10/50 hense they can do as the choose. I've used HPR 30 in my 3.9 Disco since 97. It's done 235k now.

If I remember correctly Shaun,,
(and it was a while ago---;))
you are to "blame" for my D1's longevity,,,:lol2::BigThumb:

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Originally Posted by shaunp

Max zinc levels are mandated for certain viscosity values of oils. Penrite oils are exempt due to the fact that they don't follow normal ratings ie rather than 10/40 they make 10/50 hense they can do as the choose. I've used HPR 30 in my 3.9 Disco since 97. It's done 235k now.

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Ive used it for years in my old falcon but isnt HPR 30 a little heavy (thick) for a v8 99 D2?

IMHO 10W-40 or 15W-40 oil has been better for me.At start up especially except in the warmer months then thicker is fine and that was living in Queensland.I had an old 2 door 3.5 classic years ago that ran a bit quieter and smoother on a 10w oil than a 20W and the same for the Rangie 3.9 I have just had for 4 years.I found cold morning starts quieter especially.I do know Hpr 30 has been popular with many.The Penrite 10W-50 semi synthetic seems like a good choice and has a zinc rating at 1140 ppm and the gas 10 is at 1240 ppm.I have not used Penrite before but am about to try their 10W gas.Also true as stated that Penrite have rated most of their oils to overcome the API ratings and scrape through the red tape.
Cheers
Shane