Synthetic oil
#41
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Let it rest, Mikey.
#42
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...Even if a person were to read and memorize the entire spec-it helps little when choosing an oil for purchase only to find that the spec is out of date and the product is no longer being manufactured. Later owner's manuals reflect the discontinuation of API SJ oil and recommend API SL instead. The SJ spec in turn is also out of date having been replaced by API SM.
Is SM backwards compatible with SJ and SL? The API says yes,...
Is SM backwards compatible with SJ and SL? The API says yes,...
You can get ZDDP supplement additives that can be added to a modern "cat-friendly" oil to bring the zinc level up to around 1,200-1,400 PPM for kit that finds it problematic. This is one of the very few oil additives that's of any actual benefit. Always consult your Pharmacist! ;o)
#43
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Except that SM does not meet OR exceed previous standards in all respects- it falls far short if it is to be used in engines that require higher levels of ZDDP. I use Rotella in my older cars that require higher levels, no need for additives.
Here's what the API specs actually say:
SN CURRENT Introduced in October 2010 for 2011 and older vehicles, designed to provide improved high temperature
deposit protection for pistons, more stringent sludge control, and seal compatibility. API SN with Resource
Conserving matches ILSAC GF-5 by combining API SN performance with improved fuel economy, turbocharger
protection, emission control system compatibility, and protection of engines operating on ethanol-containing
fuels up to E85.
SM CURRENT For 2010 and older automotive engines.
SL CURRENT For 2004 and older automotive engines.
SJ CURRENT For 2001 and older automotive engines
So, to state SM can be used in any engine older than 2010 is false.
If I have a case of SL oil on the shelf, can I use it in a 2005 car?
The most common oil in the stores today is SM or SL. Can these not be used in new vehicles?
Here's what the API specs actually say:
SN CURRENT Introduced in October 2010 for 2011 and older vehicles, designed to provide improved high temperature
deposit protection for pistons, more stringent sludge control, and seal compatibility. API SN with Resource
Conserving matches ILSAC GF-5 by combining API SN performance with improved fuel economy, turbocharger
protection, emission control system compatibility, and protection of engines operating on ethanol-containing
fuels up to E85.
SM CURRENT For 2010 and older automotive engines.
SL CURRENT For 2004 and older automotive engines.
SJ CURRENT For 2001 and older automotive engines
So, to state SM can be used in any engine older than 2010 is false.
If I have a case of SL oil on the shelf, can I use it in a 2005 car?
The most common oil in the stores today is SM or SL. Can these not be used in new vehicles?
#46
#47
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Many members turn nose at OEM recommendation on 'sealed for life' transmission, transfer case and differential. Yet some use the same OEM owner's manual to dispute use of synthetic engine oil.
What motivation does OEM apply to engines that's different from transmission oil service recommendation?
What motivation does OEM apply to engines that's different from transmission oil service recommendation?
#48
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#49
#50
#51
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Hey there jim goose
I see your based in Cork, as am I, can you recommend any good mechanic for doing odd jobs on my x type 2.0 diesel? I don't have any thing in particular I need to do right now but I have the NCT coming up,soon and I'm sure they will find something that needs doing! and I just want a recommendation if at all possible.
Thanks
I see your based in Cork, as am I, can you recommend any good mechanic for doing odd jobs on my x type 2.0 diesel? I don't have any thing in particular I need to do right now but I have the NCT coming up,soon and I'm sure they will find something that needs doing! and I just want a recommendation if at all possible.
Thanks
#52
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Hey there jim goose
I see your based in Cork, as am I, can you recommend any good mechanic for doing odd jobs on my x type 2.0 diesel? I don't have any thing in particular I need to do right now but I have the NCT coming up,soon and I'm sure they will find something that needs doing! and I just want a recommendation if at all possible.
Thanks
I see your based in Cork, as am I, can you recommend any good mechanic for doing odd jobs on my x type 2.0 diesel? I don't have any thing in particular I need to do right now but I have the NCT coming up,soon and I'm sure they will find something that needs doing! and I just want a recommendation if at all possible.
Thanks
#53
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1320racer (12-28-2014)
#56
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As a new owner of a 2000 S-Type 4.0 with 110k miles and someone who regularly changes my prior vehicles' oil every 3,000 miles, I find this discussion interesting. I am nervous about waiting 10,000 miles to have my oil changed, but maybe I have just been one of the sheep when it comes to such oil-change marketing...
#57
#58
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As a new owner of a 2000 S-Type 4.0 with 110k miles and someone who regularly changes my prior vehicles' oil every 3,000 miles, I find this discussion interesting. I am nervous about waiting 10,000 miles to have my oil changed, but maybe I have just been one of the sheep when it comes to such oil-change marketing...
Hi Ben, I reckon that you are right in your desire to do regular oil changes. Whether every 3000mls is appropriate only you can judge based on the conditions of use, but it will the engine internals nice and clean and well lubed.
#59
#60
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I don't know if it applies here, but I do know that many engines are designed to work with non-synthetic engine oil oils specifically. Apparently it's all to do with oil seal material and their design.
Engines that are perfectly oil-tight on dyno or semi synth oil will suddenly develop all sorts of leaks when filled with synth oil as it gets past conventional seals.
On the more general subject of Synthetic oils, does anyone know what percentage of truly synthetic oil needs to go in an oil for it to be labelled "Fully Synthetic"? You might be surprised?????
When Jaguar talk about "synthetic oil" perhaps they are referring to real fully synth, not just the stuff on the shelves labelled "fully synth".
Engines that are perfectly oil-tight on dyno or semi synth oil will suddenly develop all sorts of leaks when filled with synth oil as it gets past conventional seals.
On the more general subject of Synthetic oils, does anyone know what percentage of truly synthetic oil needs to go in an oil for it to be labelled "Fully Synthetic"? You might be surprised?????
When Jaguar talk about "synthetic oil" perhaps they are referring to real fully synth, not just the stuff on the shelves labelled "fully synth".