Patman
Staff member
When this site first started we wouldn't have considered 0w30 to be a thick oil, that would be considered thin! The thick camps were running Xw40 or Xw50.
Going to the thicker side
- Thread starter ARB1977
- Start date
Right. NEVER use 0w-30 in a hot climate.
Patman
Staff member
There are still a lot of people out there who are confused as to what makes an oil thicker than another. For instance I still see some Corvette owners posting that they don’t want to use a “thin watery oil like 0w40” and they want to stick with 5w30 because they think it’s the thicker viscosity 
There are still a lot of people out there who are confused as to what makes an oil thicker than another. For instance I still see some Corvette owners posting that they don’t want to use a “thin watery oil like 0w40” and they want to stick with 5w30 because they think it’s the thicker viscosity
I've had a certified mechanic argue with me that 5W-20 is thicker than 0W-40.
Patman
Staff member
I wouldn’t want that guy anywhere near my cars
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- May 31, 2024
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I'm very surprised none of the "thin" crowd have posted ... "May the farce be with you."
Bla bla bla, will last out of warranty. Bla Bla bla no problem for 250,000 miles, bla bla bla body will rust out before engine bearings wear...
I used to run Delo 15w40 in my 2011 Camaro SS. Thick oil is great. Thin oil is designed to increase MPG at the expense of engine wear. Some engineers claim the thin oil is for the increasing tight clearances of modern engines. Yet those same engines are still spec'd thicker oil in various parts of the world.
Just finished driving through the lower California Valley with temps approaching 110 F. with a loaded 4 cylinder SUV , high speed , higher reving interstate passing lane driving , etc. made me more comfortable knowing I had M1 5W30 EP in the crank case .
I drove through TX and AZ back to CA also in 110+ degrees. Was very confident having Valvoline syn 10w30 in the engine
Man, 30 grade? I'd be nervous. Better up it to 40 next time if you value your vehicle.
Welcome to the dark side......
I prefer 5 or 0w30 in all my engines.
I have run 20 weights before but prefer the 30 again
Especially on my timing chains
I’m just happy I didn’t have 5W20 in it as the Kia Seltos engine oil cap suggested . The OM calls out 5W20 , 5W30 or 10W30 .
Yesterday I change the oil in the pilot to 0W30. Drives great. I’ll be sticking with it.
Hermann
Site Donor 2023
Dude, that was just rude.
Hermann
Site Donor 2023
Maybe because you are the antagonist. I'm neither a thicky or a thiny. You folks are just being rude.
I think you spelt it wrong. It should be thiccc-ker
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- 35
Not a fan of either party myself. Was just making a reference to the Spaceballs movie.
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