API Motor Oil Ratings Explained - Summit Tech Talk with Carl

Old motor oil and even some newer blends (when used in older engines) can cause harm to your engine. That's why it's important to understand API ratings. What are API ratings, how are they categorized, and how can they help you ensure the safety of your engine?

[powerofknowledge]

Finally! A video that explains this in a way that's easy to understand! I've been searching everywhere for this info! Thank you!!!!

[davebarron]

Wow! This vid made me think about my wife's 77 TA with original 400 Pontiac engine. Thanks, will have to check this when I get it out this spring.

[tfmintj]

Thanks, I saved screenshots throughout to be able to refer to if I need to. Great job, very thorough!

[spannerssockets]

Excellent presentation. Even the Korean car brands use the API system in their user manuals.

[javiergonzalez]

can you guys do a new video on api certifications since api sp is out and its been 3 yrs since this video came out. also maybe some diesel and race oil recommendations. thank you. subscribed!

[roughas]

Thanks great info, from what understand the latest API rated engine oils ( SP included) are backward compatible to SJ but no earlier . I've got an outboard that is only 6 years old but the recommended oil is a SH, SJ or SL So I'm assuming that a SN or SP oil would be fine to use . Outboard motors seem to lag behind in technology compared to cars, bet my 2003 Corolla's 1.8L engine is more advanced than my 50HP 4 stroke 2015 outboard

[sebastianarturopedrajaarau]

Nice video!! I have an older Mitsubishi Galant 1992 and the service manual recommends an API classification SG or SG/CD, based on the video I should be using SJ or SL which is backwards compatible, but I can't seem to find any SJ or SL oils where I live. Is there any other API classification that I could go with for this engine's oil change?

[letsg]

Is a motorcycle yr 2018 sohc still flat tappet camshaft?

[fp]

i have a 25 year old car, never looked for api specs etc, always used 10w-40 SN full synthetic, , few days ago i looked at the manual it said SH motor oil, could not find SH or SM so i used SL 10w-40 full synthetic, i was imprest the engine became very QUIET
only one question SN motor oil did no damage to my catalytic converter, is SL safe for it, or should i go back next time to SN

[mossab]

I have a Hyundai i10 2013 1.1L and the owners manual say that I should use API SM or Sl ?

[darachy]

So i cant use a SM oil for an mc that is API SG or SF ?

[Gchethan]

Can i use SG in an engine calls for SJ?

[jalalaliyev]

Hello, I have BMW E34 525IA 1994. It means that I cannot use SM/SN rated oil for its engine, correct?

[ldraziel]

Thanks! I almost use a SN API on my opel kadett 1998 that asks for an SL. The seller said no problem...

[juliuscaesar]

Hi I was wondering if you guys have a pdf on an explanation on oils, if you can reply back with a URL that would be greatly appreciated thanks 😊

[LasseHuhtala]

I'm too scared to even go into the deep dark corners of my garage. :-o

[lindonarcenal]

how about the DOHC engines which is the cam shaft lobe is direct to the valves's shim bucket. is it bad to use SN classification? Thanks.

[rayrous]

I recently bought a small scooter.
The dealer told me to use an API rating of SG or SJ.
Do I have the flexibility to use SH or SL? Or even something more modern?

[redzlife]

Does API SL refers to Jaso MA always? If an oil leveling API SL without leveling Jaso then how to know if that oil can be used in motorbikes. (example-Takumi 10w40 mineral)

[hlqaction]

Hi, for my 1.4 VVti, 4ZZFE engine, the manuals says that i should use SAE 5W30 API SJ, does any upward norm like SL will do anything better? what about the different oils like castrols recommands on their website for the same engine, there is like 3 different oils with the same SAE recommanded, how could i know? what s the difference?