Oil again

[zippy]

I asked a question on another thread about oils.

Now another question, just for curiosity. When doing your enigne oil changes do you use ordinary, semi synth or full synthetic oil?

I have read that the full synth oil is bad for older engines since it is thinner. Then again, other forums have said that there is less engine wear from fully synth oils. I do know that the WAG TDI engines can only run on Fully synth oil

What do others on here use and why? just for interest....

Regards
Lee

 

[makeitfit]

Hmm no expert myself, but also read the other day that semi was the way to go :thumbs Cant remember all the reasons now but it made sense at the time
If you check out a site called "diesel bob" there is a section there on oils

 

[Terranosaurus]

Synthetic an mineral oils are both as thin or thick as their rating. Ie a 10w/40 fully synth will be just as viscous as a 10w/40 mineral.

Synthetic oils tend to stay in grade for longer - so should be in better condition to protect the engine in that last 100 miles before changing it than a mineral oil would be and they also tend to resist burning/carbonisation in the turbo and other hot areas better.

That said, theres a lot of rubbish on oil labels and no specific way to define semi synth or how much synth content it must have.

I'd rather have a good quality mineral il than a cheap fully synthetic.

Its the detergents in the oil that can cause problems in older engines by cleaning out deposits and blocking filter/oilways etc, if you take an engine that been runnnig on rubish for aes and is all gummed up and stick some expensive oil in it you do run that risk - but then you run a risk running it on rubbish oil too. Quality minerals will ave a high detergent factor just as much as synthetics.

To answer like I did earlier by example - I bought a semi synth Diesel specific Valvoline oil today to put in mine - 10w/40 in case you forget.

Also got Valvoline GL5 LSD oil 80w/90 FYI whilst I was at it.

 

[willow]

Synthetic an mineral oils are both as thin or thick as their rating. Ie a 10w/40 fully synth will be just as viscous as a 10w/40 mineral.

Synthetic oils tend to stay in grade for longer - so should be in better condition to protect the engine in that last 100 miles before changing it than a mineral oil would be and they also tend to resist burning/carbonisation in the turbo and other hot areas better.

That said, theres a lot of rubbish on oil labels and no specific way to define semi synth or how much synth content it must have.

I'd rather have a good quality mineral il than a cheap fully synthetic.

Its the detergents in the oil that can cause problems in older engines by cleaning out deposits and blocking filter/oilways etc, if you take an engine that been runnnig on rubish for aes and is all gummed up and stick some expensive oil in it you do run that risk - but then you run a risk running it on rubbish oil too. Quality minerals will ave a high detergent factor just as much as synthetics.

To answer like I did earlier by example - I bought a semi synth Diesel specific Valvoline oil today to put in mine - 10w/40 in case you forget.

Also got Valvoline GL5 LSD oil 80w/90 FYI whilst I was at it.

I do hope one day I meet you your always there when your needed:thumbs

 

[makeitfit]

Omnipresent:sly

 

[willow]

Omnipresent:sly

spelling:nenau:nenau do not know what you mean

 

[extreme-4x4]

Omnipresent:sly

i bought a dictionary for just such occasions

 

[extreme-4x4]

Omnipresent, ubiquitous refer to the quality of being everywhere. Omnipresent emphasizes in a lofty or dignified way the power, usually divine, of being present everywhere at the same time, as though all-enveloping: Divine law is omnipresent. Ubiquitous is applied to that which seems to appear in many and all sorts of places, or in an undignified or humorous way is “all over the place,” often when unwanted: A bore seems to be ubiquitous.

 

[willow]

Omnipresent, ubiquitous refer to the quality of being everywhere. Omnipresent emphasizes in a lofty or dignified way the power, usually divine, of being present everywhere at the same time, as though all-enveloping: Divine law is omnipresent. Ubiquitous is applied to that which seems to appear in many and all sorts of places, or in an undignified or humorous way is “all over the place,” often when unwanted: A bore seems to be ubiquitous.

Thanks:thumbs just what i ment :thumbs with out the bore bit:lol