What type of oil..?

[Sip303]

I have a little trouble understanding if there's any difference between 4-stroke motoroil and 'normal' motoroil.

Went to halfords and bought some SAE 10W-40 and SAE 15W-40 like my service manual describes.

Only i also saw some 4-stroke 10w/40 and read this was being mentioned in one of the topics. The salesguy also showed me some specific gear oil but this was different from the types described and also quite expensive..

So i bought Valvoline SAE 10W-40 and SAE 15W-40
On the SAE 10W-40 bottle it only says something about car and truck engines. The type of oil seems right to me so now i'm just wondering if it's just the label on the bottle being unclear (there's nothing about an engine type on the 15W-40 bottle..) or me worrying about details while having the correct oil

I'm about clocking 300k so i'd like to be sure to put in the good stuff.. anyone ?
--
update: ok..found some answer to this in another forum, car engines are 4-stroke so this should be fine. As long as there's no 'energy conservation' element in the oil it should be ok. Mine says 'turbo' so i guess it will all be fine.

So read first, post later...I'm more familiar with computers, they don't require oil changes.. ;D

[bobian81]

hi, I bought tescos own brand 10/40 synthetic, about 3.99 for 2 litres, and have used it to service both my jinlun scooter and 125 bike and have had no problems

[bobian81]

ps you should have posted this in the questions section

[Badobsession (the real one)]

Car oils are ok as you dont have a clutch running in oil.
If you ever get a motorcycle/moped with a motorcycle type clutch that runs in oil you must use oil designed for bikes.
Car oil will make your clutch slip.

[Sip303]

Just took a second look at my manual which learned me i need SA85-W90 for my gear... The 15W-40 'turbo' i already have will do for the engine so i will swap the 10W-40 at the shop tomorrow.

That will take me to changing the oil afterwards seeing the distance

[Macrofeet]

Heres some info about oils i found on web

what 10w 15w etc means ? its the thickness of the oil

An oil with too low a viscosity can shear and loose film strength at high temperatures. An oil with too high a viscosity may not pump to the proper parts at low temperatures and the film may tear at high rpm

low ash content,

A high ash content will tend to form more sludge and deposits in the engine. Low ash content also seems to promote long valve life. Look for oils with a low ash content.

high zinc content

zinc is only used when there is actual metal to metal contact in the engine. Hopefully the oil will do its job and this will rarely occur, but if it does, the zinc compounds react with the metal to prevent scuffing and wear. A level of .11% is enough to protect an automobile engine for the extended oil drain interval, under normal use. Those of you with high revving, air cooled motorcycles or turbo charged cars or bikes might want to look at the oils with the higher zinc content.

Synthetic, Synthetics

The synthetics offer the only truly significant differences, due to their superior high temperature oxidation resistance, high film strength, very low tendency to form deposits, stable viscosity base, and low temperature flow characteristics. Synthetics are superior lubricants compared to traditional petroleum oils

can be run three to four times the mileage of petroleum oils with no problems.

[r08813]

Chuck any old stuff in as long as it's 10/40 or there about, it's only got to last 1000km who cares whether it's from halfords or tesco or whatever, it definately wont make the slightest bit if difference to performance in a 50 or 125cc and it will not knock an inch off the engine life.

These are extremely unstressed engines (125 cc engine power output is only half the power you are allowed on your 125cc licence)

Just don't forget the regular change at each 1000km missing that too often will definately affect both performance and engine life

[ally1756]

oil should never be skimped on

[lilbit592000]

with freezing temps here i want my oil pumping so I follow the book and use 10w30 it's allways been a good all weather oil

[enu06]

I use about 5 tins of 3-in-one because I like the handy little spout!
(not really though)

[bondingi]

Ive always been a fan of WD40 but it takes ages filling with that little red straw :-)

[cb50j]

ok

[dmilo]

10w 30 synthetic is great for most conditions doesnt breakdown as fast as 10w 40
dmilo