No doubt its been asked many times before but what oil and grade do you folkes recommend to use in Zetec 16v Turbo engines??

 

any body

 

Silkolene synthetic 5w-40 or 10w-40 often comes highly praised.

HTH

 

15-50 mobil 1 motorsport 5-40 far to thin 10-40 a bit better

 

pardon my ignorance, but i was under the impression that Zetec engines HAD to be un on 5/30 oil - anything else thicker clogs the engine

 

Defintely not right Graceland - i ran my last Zetec turbo motor on Mobil 1 15/50 for 10K + miles, was spot on when i stripped the engine down last year!

And thats my suggestion for oil to use too by the way

 

A good quality 5-30w or 5-40w I would say

 

y would that be

 

Read the thread by oilman yet Alex ?

 

no m8 i ant m8 does that enlighten me then

 

Dunno I was hoping you would do the same

You say 10w 40 is better than 5w 40 as thats too thin they are both the same lol

 

Your std Zetec engine does run on 5/30 oil. but this is a Zetec turbo so something like mobil 1 motorsport would be better imo

 

thnx for all the input peeps

Wasn't to sure what to use as the zetec engines are recommended with one grade and turbo charged engines a different one.

Think i'll opt for the mobil 1 motorsport stuff

cheeRS

 

just pm oilman, save ya loads of hassle and get a proper reply

 

Alex zvh cabrio, Only talking through experiance from my Zetec. I found it runs shit on oils graded 10-xx etc when cold, evan cut out on a few occasions , put 5-30 in and its fine, Also oilman advised I should only use 5-30 and so does the Ford manual and haynes

 

Zetec needs 5w-30.

You can buy semi or fully syn.

Motul do a Ford Specific one.

http://www.opieoils.co.uk/TechSpecs/...5W-30_8143.pdf

Motul do a fully synthetic one (Mobil1 quality)

http://www.opieoils.co.uk/pdfs/MOTUL...23%28GB%29.pdf

OR.......Top of the tree for highly modded and Race applications this is the puppy!

http://www.opieoils.co.uk/p-867-motu...cing-cars.aspx

Plenty to choose from

Cheers
Simon

 

true what u say for that but its a bit diffant if u got a turbo on it and better pistons and rods of couse it will say 5-30 oil in the manual and haynes becasue that a std zetec lump.

 

LOL @ all the "imo experts"

There's only two people i'd trust with what oil to run in a turbo zetec......Oilman and Karl Norris.....I don't think anyone can compete with their levels of knowledge on the subject!

 

Alex zvh cabrio, Blah Blah























Just kidding fair point, but "IMO" Phil sums it up

 

The solution is not to change grades.

Step up the quality! Motul 300V 5w-30 is about the best out there as like the Silkolene PRO it's an ester/pao proper synthetic.

Cheers
Simon

 

oilman, Am I right in saying that because the difference between the high and low grades in 5-30W (ie. 30-5 = 25) the molecules are less likely to be oxidised(or breakdown) than oils with say a 10-60W rating?

 

oilman, you have an e-mither.

 

It's to do with stability.

The viscosity gap between 5w-30 = 25
The viscosity gap between 10w-60 = 50

The smaller the gap the more stable the oil as less VI Improvers are required.

Viscosity Index Improvers.

An oils viscosity will decrease as the engine temperature rises. Viscosity Index Improvers are added to reduce this thinning. They are a key addative in the production of multigrade oils.

VI Improvers are heat sensitive long chain, high molecular weight polymers that increase the relative viscosity of the oil at high temperatures. They work like springs, coiled at low temperatures and uncoiling at high temperatures. This makes the molecules larger (at high temps) which increases internal resistance within the thinning oil. They in effect "fight back" against the viscosity loss in the oil.

"Shearing"

The long chain molecules in VI Improvers are prone to "shearing" with use which reduces their ability to prevent the oil from losing viscosity. This "shearing" occurs when shear stress ruptures the long chain molecules and converts them to shorter, lower weight molecules. The shorter, lower weight molecules offer less resistance to flow and their ability to maintain viscosity is reduced.

This shearing not only reduces the viscosity of the oil but can cause piston ring sticking (due to deposits), increased oil consumption and increased engine wear.

Like basestock quality, VI Improvers also vary in quality. The best quality ones are normally found in synthetic oils (Group IV - PAO / Group V - Esters) and it is important to understand that the less of these in the oil the better the oil will stay in grade.

Which oils require more VI Improvers?

There are two scenarios where large amounts of these polymers are required as a rule.

Firstly in "wide viscosity" multigrades. By this I mean that the difference between the lower "W" number and the higher number is large for example 5w-50 (diff 45) and 10w-60 (diff 50) are what is termed as "wide viscosity" oils.

Narrow viscosity oils like 0w-30 (diff 30) or 5w-40 (diff 35) require far less VI Improvers and therefore are less prone to "shearing".

Secondly, mineral and hydrocracked (petroleum synthetic oils) require more VI Improvers than proper PAO/Ester (Group IV or V) synthetic oils as they are less thermally stable to begin with and this is due to the non-uniform molecules in petroleum oils as opposed to the uniformity of synthetics built in laboratories by chemists.

It is a fact that some synthetics require little or no VI Improvers to work as a multigrade due to their superior thermal stability.

Cheers
Simon

 

What difference is there between the two? Is either technically better?

 

The Motul uses a double ester and the Silkolene only uses a single ester, in terms of performanceand quality there is very little between them.

Cheers

Simon.

 

Thats cool then, im the one who got KRT to collect 10 ltrs PRO S from you a week or so ago lol.

Do you do oil for bikes? Namely a GSXR 600.

 

Yep,

I dont stock many bike oils but can get them.

Drop me a mail to sales@opieoils.co.uk for a bike price list.

Cheers

Simon.