Thanks everyone for all the feedback received on the last thread I posted and I hope it was at the least an "eye-opener" for some.

 

I thought it would be a good idea to keep details of any advice given and a list of recommendations somewhere on this page (hopefully an admin will make it a sticky at some point so that it is easily found).

 

Looking at my comments so far, these are the ones that I feel belong in here, if you have any others then please contribute or ask futher questions which hopefully will make this an interesting FAQ thread one day.

 

Quotes so far:

 

Oilman c/o John Rowland (Silkolene/Fuchs R&D Chemist)

 

So, the chemistry of “synthetics” is complex and so is the politics!

 

The economics are very simple. If you like the look of a smart well-marketed can with “synthetic” printed on it, fair enough, it will not cost you a lot; and now you know why this is the case. But, if you drive a high performance car, and you intend to keep it for several years, and maybe do the odd “track day”, then you need a genuine Ester/PAO (Poly Alpha Olefin) synthetic oil, such as PRO S or PRO R. This oil costs more money to buy, because it costs us a lot of money to make, very simply, you always get what you pay for!

 

 

Oilman

 

My opinions are frank but based on facts so I'll apolgise in advance if I upset anyone but I will ALWAYS give you the "best advice", you don't have to take it.

 

Finally, oil for the 300zx is an interesting one as the recommendations I have had are based around the Manufacturers which is 10w-40 Semi-syn however, depending on driving conditions, the following grades can be considered 10w-40 semi-syn,10w-50 Fully-syn, 5w-40 fully syn and 15w-50 fully syn.

 

These all have different advantages to the performance of the car depending on how you use the car. Short journeys, long journeys, track days etc....

 

 

deve8uk

 

So how about sugesting something for a zx with minor mods, running approx 10psi boost that is a daily driver and normaly does short trips and only rarely gets booted. And I do mean rarely here.

 

 

Oilman

 

Firstly bear in mind that the car was designed to run on 10w-40 which is the manufacturers recommended oil but as just about all 10w-40's that I know of except for one are semi-synthetics I would go for fully synthetic as it has a higher resistance to thinning down with temperature (a good one that is, not just an excuse for a synthetic with a pretty label) as they stay in grade longer.

 

 

Oilman

 

For short journeys and lots of cold starts, you need an oil that circulates quickly as this is where 70+ percent of the engine wear occurs so rather than using a 10w consider a 5w, its thinner and circulates more easily. 0w is even quicker but may be too thin and you could end up with oil seal leaks.

 

For faster longer journeys where the engine is operating a high temperatures (hard driving) I would consider a 10w-50 or 10w-60 to give more protection at the top end but you want an oil that has a high resistance to thinning down and "stays in grade" longer. Ester is the best for this (see note below).

 

For racing and track days, you need an oil that will give more protection still and I would consider a 15w-50 which is a recognised motorsport and racing oil which will protect you almost entirely at the top end.

 

 

RichardSmith

 

What are your views on Millers XFS 5w40 and Shell Helix Ultra 5w40 fully synthetics?

 

 

Oilman

 

Difficult to comment really as I've never stocked Shell or Millers. I would be happy using Shell but based on Millers prices, I wonder about the quality, the first post here may be relevant to their oils but without the data it's difficult to say for sure.

I'll try to speak to some technical bods on monday and see if they have any data or experience of these oils.

 

Here are some comments so far for kick off.

 

Cheers

Simon

For running in, you will need a good rich mineral or semi synthetic oil.

 

Around the 15w-50 grade and run in for around 1000 miles, then you can swithc to a full synthetic.

 

Plenty to look at here http://www.opieoils.co.uk/lubricants.htm

 

Hope this helps.

 

Cheers

 

Simon.

cheers Oilman

 

Just one other thing. I have put 10-50 semi synthetic in her would that be OK. + When changing to fully synthetic should I drain my oil cooler first?

I would say 10w-50 semi would be fine as long as it's a petroleum oil and it is likely to be this if it's semi. Always get as much as you can out when you change as you are rather defeating the point of switching otherwise.

 

Cheers

Simon

Just as a note to those who will be attending, we will be attending the following events this year.

 

We will of course be on-hand to give advice and will have plenty of quality oils with us.

 

Japfest (may)

GT Battle (June)

JAE (July)

TOTB (July)

 

We will probably run a pre-order list prior to all these events (about 1 month before) for those interested in collecting oil "carriage free" during the event.

 

We will merely need your name, club and requirement to ensure that your oil is available on the day as we have limited spece.

 

Hope to meet you soon.

 

Cheers

Simon

tbh ive worked out looking back at my car history that my smoking and sometimes drop of oil pressure has been a: on hot days only and b: since i put in castrol 10w 60. so im gonna flush that out me thinks.

tbh ive worked out looking back at my car history that my smoking and sometimes drop of oil pressure has been a: on hot days only and b: since i put in castrol 10w 60. so im gonna flush that out me thinks.

Iv'e been looking for oil for over a week now, a 10/50 (mobil 1 or summat similar), but then spoke to dtamotorsports, who are local to me, an he has been using magnatec 10/40 for 4 yrs with no prob's, what you think?? :confused:

Sorry, would help, i think it's stock TT, with mongoose zorsts but may have found it has a nisteck set-up, jets an chip but i dont know what map as yet.

10w-40 or 10w-50 is fine. Just bear in mind that Magnatec is a semi-synthetic though.

 

Cheers

Simon

heard magnatec is really nasty in a zed engine.

heard magnatec is really nasty in a zed engine.

 

Should be ok as it's the minimum recommended oil. It is used by Nissan and Zworld.

 

However a fully synth is better for a turbo engine, especially one that generates so much heat and power.

 

Richard :cool:

Hi mate, could you email me the 10w60 report. My car has had millers 10w60 in for several years and runs very well,but I'm having trouble getting any. How much is the closest you do to this? Think I've asked you before, apologies! Dave

Hi mate, could you email me the 10w60 report. My car has had millers 10w60 in for several years and runs very well,but I'm having trouble getting any. How much is the closest you do to this? Think I've asked you before, apologies! Dave

Hi Dave, have you tried Outlander motorsport? Thats where I got my last lot from.

Yeah, pm'd them several times but no answer. Havn't got round to trying the dog and bone mind. Keep forgetting to save the number

You could try ordering it online via his site if you really want Millers.

I sent him a message via his site as well, but still no reply. I'll phone him tomorrow, I'm getting pretty desperate now as I've done a lot of miles and a trackday on this oil. A change is overdue. Dave

If you get really really desperate I have 5 ltrs of Millers you can "borrow", I have tried Castrol RS10/60 which seems thick and made the engine rattle a little, Silkolene that oilman recommends, which was thin and worried me using it and the only one so far I am happy with is the Millers. Just my opinion bud.

Still 'borrowing' your oil adapter plate so couldn't borrow any more mate (I'll send it as soon as I get back to Plymouth)! Would buy the millers if you're willing to sell it? Not sure if its worth it due to post costs though? I was just thinking, maybe merlin motor sports at castle combe do it? gonna check if theres a web site as they are down the road ish a min. Dave

Well if you get really stuck you can buy it, I would guess the postage is gonna be about £6.50, try someone local, I know Wilco Motorists store here will order it in for me but not sure if they are a National company so you may not have one near ya.

Gonna try merlin motor sport at castle combe tomorrow. They've got some millers products on the website so maybe they'll have the oils too. Dave

He was on sxoc yesterday :)

10w-40 or 10w-50 is fine. Just bear in mind that Magnatec is a semi-synthetic though.

 

Cheers

Simon

Would you recomend fully synth in a motor with over 100,000 on the clock though??

If the engine is in good nick and not losing or burning oil yes.

 

Cheers

Simon

Quoted by Oilman "If the engine is in good nick and not losing or burning oil yes"

 

and there is the rub........quantify good nick.

 

 

Jeff TT

It's not knackered.

 

Cheers

Simon

Just found this old thread.

 

If you have any oily questions, please post them here.

 

Cheers

 

Guy.

just read all this thread WOW oil!:confused: will be doing oil change soon may check it again :headvswal

 

dan.:D