Enya
Well-Known Member
The oil is mineral based, not semi synthetic.
Put oil for petrol engine in diesel boat engine Should I be worried?
- Thread starter Enya
- Start date
Noahsdad
Well-Known Member
What type of engine and how old?
I put mineral in my 3GM.
I put mineral in my 3GM.
sailorman
Well-Known Member
No it will be ok
oil for petrol / diesels is much the same these days.
check the spec, it will almost certainly mention CF or CF4 which are diesel specs
http://www.api.org/certifications/engineoil/pubs/upload/engineoilguide_march2010.pdf
http://www.bing.com/search?q=api+oil+specs&pc=MOZI&form=MOZSBR
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theoldsalt
Well-Known Member
Enya,
Are you sure that using semi-synthetic is the correct oil to use. What engine do you have? This is important for advise on the effect.
I would not advise mixing mineral with semi-synthetic.
Check your manual and put in the correct oil if semi-synthetic is specified. The cost of the mineral oil you may have to remove and waste is small.
Are you sure that using semi-synthetic is the correct oil to use. What engine do you have? This is important for advise on the effect.
I would not advise mixing mineral with semi-synthetic.
Check your manual and put in the correct oil if semi-synthetic is specified. The cost of the mineral oil you may have to remove and waste is small.
sailorman
Well-Known Member
Suggest you re read the OP
theoldsalt
Well-Known Member
I have read the OP several times. Please explain !
sailorman
Well-Known Member
theoldsalt
Well-Known Member
My reading of the OP is that mineral has been put in instead of semi-synthetic. So where am I going wrong? Perhaps the OP is ambiguous.
sailorman
Well-Known Member
Sailing my Albin Vega, often singlehanded, mainly in the Solent. Maintaining the Boat.
theoldsalt
Well-Known Member
I'm not alone here reading this thread and we are all confused by your replies and we are trying to help the OP with his question.
sailorman
Well-Known Member
#3 was helpful
lw395
Well-Known Member
I thought semi synthetic was mineral oil with some synthetic blended in?
I think virtually all oils can be mixed unless you run into castor oil among vintage bike addicts?
I think virtually all oils can be mixed unless you run into castor oil among vintage bike addicts?
theoldsalt
Well-Known Member
I have found this advise regarding mineral and synthetic oils. (presumably aimed at car engines)
http://www.imakenews.com/rotella/e_article000398800.cfm?x=b11,0,w
However most advise I have received regarding my old diesel is to stick with the manufacture's recommended oils which will be compatible with the seals and gaskets used.
http://www.imakenews.com/rotella/e_article000398800.cfm?x=b11,0,w
However most advise I have received regarding my old diesel is to stick with the manufacture's recommended oils which will be compatible with the seals and gaskets used.
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VicS
Well-Known Member
You have not said what engine or what oil you have used.
Is the oil the correct viscosity grade ?
Does the spec for the oil you have used mention any service category beginning with a letter 'C', eg CF, CG, CH, or CI ?
If both answers are yes then it will be OK
If it is the correct viscosity grade but only mentions service categories beginning with a letter 'S', eg SJ, SL or SM it is a petrol engine oil. Don't panic but change it sooner rather than later.
If it is not the correct viscosity grade change it.
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Jim@sea
Well-Known Member
Treat it as if you have used it as a "Flushing Oil" and change it.
vyv_cox
Well-Known Member
Why? I don't think I know any oils that are exclusively for gasoline or diesel engines. Even traditional gasoline oils, such as Shell X100 are also rated for diesels, as VicS says, with the prefix 'C' in the API spec.
sailorman
Well-Known Member
or even post 3
Enya
Well-Known Member
Sorry I have been out on my boat and incommunicado. The story is this. I went into Sainsburys garage last autumn and bought 5 ltr of mineral oil (not semi-synthetic) for the BZ 482 on my boat. Changed oil before end of season and thought no more. A few weeks ago I needed to top up my car oil which is actually petrol and reading the label noticed it was for petrol engines. They also sell oil for diesel engines as I have since noticed. Having used up all of the oil on my car, it was low, I threw away the container. I therefore cannot answer many of the questions about the spec. The engine seems to function very well with the oil and it still looks nice and clean but should I worry? Should I top up, if I need to with the same make of oil or should I use oil for diesels?
theoldsalt
Well-Known Member
Enya,
The following is an extract from the Beta manual.
Lubrication
Engine oil: Engine oil quality should have the minimum
properties of the American Petroleum Institute “API”
classification CF (CD, or CE). The following table gives grades
of oil viscosity required for various ambient temperature
ranges.
Note: A good quality SAE 15W/40 mineral based multigrade
oil as used in most car diesel engines will meet requirements.
Do not use ‘Turbo Diesel Oil’ or additives, and the use of
synthetic oil is not recommended.
Ambient Temp. Single Grade Multi-Grade
-30°C to 0°C SAE 10W S AE 10W/30
-15°C to +15°C SAE 20W SAE 15W/40
0°C to +30°C SAE 30 SAE 15W/40
25°C and above SAE 30 SAE 15W/40
The following is an extract from the Beta manual.
Lubrication
Engine oil: Engine oil quality should have the minimum
properties of the American Petroleum Institute “API”
classification CF (CD, or CE). The following table gives grades
of oil viscosity required for various ambient temperature
ranges.
Note: A good quality SAE 15W/40 mineral based multigrade
oil as used in most car diesel engines will meet requirements.
Do not use ‘Turbo Diesel Oil’ or additives, and the use of
synthetic oil is not recommended.
Ambient Temp. Single Grade Multi-Grade
-30°C to 0°C SAE 10W S AE 10W/30
-15°C to +15°C SAE 20W SAE 15W/40
0°C to +30°C SAE 30 SAE 15W/40
25°C and above SAE 30 SAE 15W/40
sailorman
Well-Known Member
Dont worry sleep easyl
