Fuck synthetic oil

>>16842335
>Is this pasta?

>>16842335

My engine is turbo, conventional oil would break down in less than 2000 miles of any sort of boost-heavy driving.

Synthetic can easily go for 5000 or more.

>>16842335
You're honestly right when I think about it. Mostly it's g-forces acting on an engine to break it during high RPM.

Nothing to do with the performance of your motor oil.

Good post.

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>>16842352
>mfw synthetic oil is literally snake oil for turbo cuck machines

It's like $5 more shut up

>>16842335
>can't afford $40 every 6 months to a year
How could you even own a vehicle?

>$20 for a jug of synthetic is expensive compared to a $15 jug of conventional

>>16842335
Yeah dude fuck em! I'll take Valvoline white bottle all day long

wait now that I do some research, your oil would freeze in sub 0 temperatures.

synthetic doesn't. sounds like synthetic is just better m8.

OP, you realize it's getting to a point where synthetic is cheaper to make than conventional oils and there's hints that shit like Pennzoil yellow bottle conventional is already synthetic.

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>>16842335
>mfw driver's manual says change oil filter at 6,000miles and top off. Then Change oil and oil filter at 12,000.

Car uses like 3.5qts of 20w50

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The only reason I'd use conventional over synthetic is to minimize leaks (synthetic is thinner and leaks more)

>tfw m103 leakbox in my car

>>16842477
Are you dense? What do you think the 10w30 on an oil bottle means?

Don’t Americans get semi-synth, or something?

>>16842497

Pretty sure certain detergants can make it leak more

>>16842477
My uncle has been modifying beetles since the 60s, said you don't want to run synth in them because they'll leak way too much

posting in a bait thread. or OP is actually posting from some third world country where synthetic is still much more expensive.

>>16842497
>What do you think the 10w30 on an oil bottle means?
I guess it means a simpleton believes thick was is the only factor determining viscosity and that viscosity is absolute in measurement and not a range of values.

I have used synthetic in some old engines and never experienced a new leak.

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>>16842335
Why not just use cooking oil???

>>16842357
dumb frogposter

>>16842358
>>16842362
>>16842370
>>16842377
>>16842382
oi vey, goyim. Buy this placebo product for $5 more because atleast you have a piece of mind

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Motorcraft synthetic blend for $17.50

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>>16842335
>changing oil more often with inferior oil because synthetic is a bit more expensive

kys

>>16843367
>oy vey, use this snake oil. Good goy

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>>16843373
>synthetic oil is a Jewish conspiracy

get back to /pol/

>>16843386
im not saying its one, but you have to be retarded to be paying more for placebo

>>16843398
you have to be retarded to think it is a placebo

i put liquad soap in car. same shit, more cheaper. also engine is clean.

I will just keep using synthetic oil, thank you.

>>16843427
Mobil 1 does that but with the difference that it protects the engine from wear at the same time.

>>16843434
Mobil 1 is shire comparer to Castrol

>>16842357
you're fucking retarded dude. Put conventional oil in your volkswagen and see how the interior of your engine looks after a few oil changes.
t. valvoline employee
>>16842477
can agree with this. I switched my shitbox over to synthetic after I bought it and it started leaking from both valve covers.

>>16842579
Depends on where you fill. My dealership charges $40 for a semi-synth change which I think is 6 liters in my car. $100 for full synthetic.

They gave me the first oil change for free and charged me $40 for the second one. Considering I can get the filter for less than $10 (if I use OEM) and when the oil goes on sale I can get full Synthetic (Mobile 1) from Costco for less than $30, I'll just change it myself next time.

>>16843419
This. Especially if you live in a place that has actual seasons. You know like a winter and summer. Where the operating temperature gets extreme. The temp range where I am at its coldest will be low teens and highest will be 110+.

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Here


http://www.motoroiltests.com/car-oil-testing.html#.WMnGeSNlDqB

Just put in the oil the car asks for. The engineers knew what they were doing

>placebo
>measurable benefits

I haven't changed the oil in my car for more than 2 years. Just hit 250k miles the other day too.

>>16843821
t. woman

>>16842497
He didn't just mean thinner viscosity. Synthetic oil molecules are smaller than those of conventional, this they can leak through smaller gaps

>>16843493
>change it myself next time
Watch out for the warranty fuck.

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>>16842335
>$15 conventional
>change every 3 months
>$60 a year and $40 in filters
>total $100
Vs
>$20 synthetic
>change every 4months
>$60 a year and $30 in filters
>total $90

DO THE MATH, SON.

>>16843865
The next oil change will be outside of 36 months/3 years anyways (I've only put 21,000 miles on the car in 2yr4mo and the change interval is every 10,000 miles) and automakers are not allowed to invalidate the warranty merely for the use of non-branded parts/supplies.

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>>16842477 >>16842794
>The only reason I'd use conventional over synthetic is to minimize leaks
Conventional oil makes a sludgy hard glaze that can partially seal up leaky seals. Synthetic cleans too well, so it removes sludge and glaze that can be plugging up leaks.

>>16842335
I don't care, I want the best for my car

>>16844675
if something is leaking, I don't think you want to ingor it

>>16844718
There is also the high-mileage version of synthetic oil. Those have an additive to cause the seals to swell just a little and reduce leaking from old and worn-out seals.

>>16842335
hahaha I actually almost got baited by this

>>16842335
Literally the only case in which synthetic would be worse for the car is if it's a dorito, because synthetics have flame retardants in them and doritos have to burn it to lubricate the apex seals. Otherwise you should always use synthetic.

>>16844675

Loosening up all that sludge can clog up the oil lines too. Best just use whatever you have been using.

>>16843849
> molecular sized leaks
kek

>>16845830
Or best to start with full synthetic as early as possible before the sludge and glazing gets too thick.

>>16846745

Not everyone here owns new cars. My shitbox has been on semi-synth forever and has no leaks. I would like to keep it that way.

With the aid of sludge and glaze, one can prevent leaks forever!

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>94 F150 with a 351 burns a quart of oil every 2 weeks
>use Castrol GTX 20W-50 because it's cheap
>never have to do an oil change, ever
>just change the filter every 5,000
>keep riding till it dies in another 100,000 miles
>no fucks given

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>>16847120
Why did you delete it ya fucking geezer? Is it your son or your wife's?

>>16846918
Well, at least until you have to take the engine apart.

>>16843849
Actually synthetic oils of the day were significantly less polar than conventionals of the day. Dry oils fail to keep seals supple but more importantly the film migrates much easier than polar oils. Synthetics like GrIII and GrIV are considered "dry" because they chains are saturated with hydrogen and are thus non-polar. Now days, conventional uses the same hydrotreated, saturated base stocks (but with a lower Viscosity Index, meaning they classify for GrII only) so there really is no difference with leakage between "synthetic" and "conventional" oil, which are now marketing distinctions instead of scientific ones.

tldr; the synthetic leaking wives tale is expired due to advances across the industry

>>16843531
540rat is a tard

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What's /o/'s opinion on this stuff. Can you really get away with changing your oil once a year? What about the filter?

>>16847132
It's my son's. But there were formatting and spelling errors. I can't fucking stand that. Because you can't edit, I'd rather just delete and start again.

>>16847384
> Implying I don't change the oil in my jetta every 15k miles with some garbage 0w-40 shit

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>>16847662
>worrying about formatting and spelling errors
>on /o/ of all places

Leave that shit at the door man, no one cares about that shit here

>>16842593
Non diesel engines don't use detergents in their oil...

>>16843493
The fuck? I paid like 30 dollars for full synthetic and a filter. I had to change it myself but hey.

>>16843518
I understand the pain I'm in place where it gets -40°f. At that point you need oil pan heaters, and block heaters even on gasoline engines.

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>>16842335
Man you sure showed us, saving all that money once a year. You must save like $30! Are you a billionaire yet

>>16847384

>Oil gets acidic as it gets older
>Letting old, acidic oil sit in your engine
>Seals/o-rings/gaskets get eaten away by the high-acidity oil
>leaks fucking everywhere

This is literally 50% of all the Subaru head gasket leaks. Old oil may still technically be "good" to use but there's not a single good thing about letting ancient oil chew away at rubber/thinner metal parts of your engine.

tl;dr change your fucking oil more often

>>16848663
>Oil gets acidic as it gets older
>Letting old, acidic oil sit in your engine

Over time, the Oil also gets diluted by gasoline. It also collects water from the combustion process via blowby gases. Additives in the oil protect the internal engine surfaces but eventually get used up or become "weaker" due to age and dilution. The GM owners' manual says even if you don't put many miles on the car to change the oil at least once per year.

>>16845830
The sludge is already plugging or blocking things. If you're worried about sludge plugging things up, look at the oil coming out or send it in for oil analysis. You can also open up the oil filter cannister and see if there is sludge on the filter. If so, then you can go to extra sludge breakup power of pennzoil platinum ULTRA. If you wondered why pennzoil made two similar yet different full synthetic oils, it was because ultra contained far more detergent. In one sense, it is the one you use to recover from using conventional oils.

>>16843452
>implying anyone on /o/ is employed

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>>16848658

>painting the rotors

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>>16851582
I am. Pic related, it's the comments list I had to make on the giant pile of shit Lexus ES300 I worked on yesterday.

>>16848499
It's like $7 for the factory (OEM) oil filter and $25 when on sale for the oil at costco (Mobil 1 full synth). So same price area if you're going to change it yourself.

>>16848221

Pretty sure they do, but I could be wrong. Most oils are compatible with both gas and diesel.

>>16851573
>Using oil that will loosen up shit in the engine and just running with it

It would be smarter to just do an engine flush, but that can cause a shitload of leaks too.

>>16842335
>Costs ~20~% more
>Lasts >20% longer
Plus less work to change because you do it less often. Why worry about the per-unit cost when cost/time is improved?

>change it regularly

You mean half as often as conventional?

>spend $30 every 3k mi or $35 every 6k

Oy vey don't do the second one you're engine will explode you need to spend twice as much money goyim

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>>16842335

>>16842335
>Fuck synthetic oil.
If you have turbo, full synth withstands heat soak better.

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>total waste of money
I've never had trouble finding synthetic for $10-12 for 5 quarts, when it's on sale with a rebate. Where are you finding conventional cheaper than that, except for maybe SuperTech?

>>16842335
>synthetic oil
>and oil additives

this guy

>>16853328
Even the conventional 5qt jugs of supertech are $12. I don't think you can get cheaper than that.