mookaloid
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| posted on 21/7/12 at 10:20 PM |
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diesel oil in a petrol engine
Daughter's golf - brought it round today for me to fix a vibrating speaker.
Whilst there I checked the oil - needed a longer dipstick to be able measure the actual level so thought it best to put some oil in before driving it
any further.
I only had a can of 5W 50 fully synthetic diesel oil which I haven't needed for years, so on the basis that this is better than no oil - in it
went.
What do we think? is this ok?
Cheers
M
"That thing you're thinking - it wont be that."
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ReMan
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| posted on 21/7/12 at 10:36 PM |
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It will be fine.
But I'd look at changing it if its a new car, if not just run it and top up with normal next time
www.plusnine.co.uk
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mookaloid
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| posted on 21/7/12 at 10:48 PM |
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quote:
Originally posted by ReMan
It will be fine.
But I'd look at changing it if its a new car, if not just run it and top up with normal next time
It's a 2000 year 1.6 8v - hardly new 
"That thing you're thinking - it wont be that."
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Staple balls
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| posted on 21/7/12 at 11:36 PM |
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Probably be fine, I'd just swap it to the right stuff when you get chance.
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RichardK
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| posted on 22/7/12 at 04:12 AM |
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Give it a couple of days and you'll have forgotten you ever did it anyway,so all good mate!
Gallery updated 11/01/2011
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britishtrident
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| posted on 22/7/12 at 07:42 AM |
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Not a problem as a general rule diesel engine oils meet the specs or petrol.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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Slimy38
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| posted on 22/7/12 at 08:34 AM |
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When I was in Halfords getting some oil for the tintop I did notice a selection of oils that were 'petrol/diesel'.
The only thing might be that a 5-50 weight oil won't be too good for that age of car. My personal preference for older cars is a slightly
thicker semi. But only a top up won't affect the overall weight that much.
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madteg
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 posted on 22/7/12 at 08:36 AM |
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diesel oil
Depends on what oil you have used, i had a very expensive experiance when i did it.
Used to work for a bus company where i could get oil for free, anyway car started to smoke on overun after about a month. (Rebuilt engine) Still
smoked could not under stand why, till someone said did you use the bus oil with detergent in it. Drained oil filled up with petrol oil and instantly
OK. Did notice when i stripped engine there was no carbon deposits and all internals where spotless. This was 20 years ago tho.
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chillis
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| posted on 22/7/12 at 09:06 AM |
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Depends on age of engine but all the engine oils I have in the garage say suitable for petrol and diesel engines.
It is true that years ago diesel engine oil had more detergents in and this would attack oil seals and cork gaskets. Modern diesel oil has less
detergent in and modern engines use diesel type oil seals and different gaskets to cork. If your at all concerned then drain the oil, change the
filter and you will be good.
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britishtrident
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| posted on 22/7/12 at 10:17 AM |
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A few points
To meet 5w/50 viscosity range the oil must be a very good quality oil I am pretty sure it will be fully synthetic, the normal oil recommendation
for this car in the UK climate is 5w/30 so a 5w/50 should cause no viscosity problems.
Synthetic oils have need much lower levels of additives than mineral oil.
Even the cheapest supermarket synthetic oils stand up to the hostile conditions in the engine crankcase much better than mineral oil, they also
provide a much better oil film on the rubbing surfaces.
Engine oils in diesel engines are subject to harsher conditions than in petrol engines for this reason have higher levels of additives to
counter the formation of sludge, varnish and control the acidity of the oil. However as with synthetic oils petrol engines in a synthetic oil
for a diesel the ammount of additives in the oil is much lower than in a comparable mineral or semi-synthetic oil. Nearly all modern oils meet the
requirements for petrol or diesel engines. The main exception is a diesel where a PD oil is required.
The only reason for preferring a mineral or semi-synthetic engine oil on an old (eg early 1960s or earlier) car engine is that mineral oil
keeps natural rubber oil seals from shrinking.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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