sullyman

Using the synthetic blends from the dealership for the first 30k miles, then will go full synthetic after that. Have done that with all of my vehicles, and never had an issue. Put over 250k miles on a Datsun Sentra, a Chevy Beretta, and my wifes Monte Carlo she had. I managed to put over 160k miles pov a Dodge with a Hemi too.me

That said, the Datsun and the Chevy always got Quaker State full synthetic the Dodge got Valvoline.

chrisrennison21

Alright, fill me in on whatever i've never heard of about this change in oil. I don't have a clue why it makes sense. Also I live in texas if it makes any difference?

Norotso

http://www.bobistheoilguy.com/motor-oil-102/

chrisrennison21

I was trying to avoid the 10 page chemistry essay report.. Lol. I didn't want to try and understand it.

Norotso

In a nut-shell, oil thickens up as it cools down. The lower the viscosity number is at a cold temp, the less wear and tear on an engine on start-up.

chrisrennison21

? so can you say the overall lubrication and wear doesn't suffer during harsh conditions (110* temps or more) with the lower viscosity.

I guess what i'm wondering is if you get easier starts and the starts don't wear as much.(Good) but does something else suffer because of that? like when oil gets hot and is worked harder in harsh conditions.

Norotso

If you refer to the chart in the link I provided above, the accepted viscosity of oil at engine operating temp. is a 10 So if oil thickens up as it cools down, a 0W-30 has a viscosity of 40 and a 10W-30 has a viscosity of 100 @ 75F So which one would be better as an overall oil. For me our winters get down to -30-40C

In any event I'm using the Amsoil 0W-30, been using Amsoil in my gas/diesel engines since 2003 and have not seen a problem.

thundergrey

0w-30 is good stuff. Think of the first number as the cold viscosity (start ups) and the second as viscosity at operating temps. Thinner oil at startup means oil goes to the top of the motor quicker and less power loss during warm up. Thinner oil at operating temps means less power losses but less protection.

Synthetic oils tend to use better additives so they are usually more stable at higher temperature and won't break down as fast. Really the only thing that suffers is your wallet.

chrisrennison21

Cool. Thank you guys for helping me understand. That's a whole lot easier. Now I can understand why it would be better. Sorry just never took the time to learn the specifics about oil. Always had forums to lean on while determining what I would run.

junehhan

Based on what we have seen about oil consumption in the 5.0, it is clear that a good break in may be very important as different motors break in differently. On other motors, it is more vague but I know that my 5.0 used a massive amount of oil for a while until it finally settled down to using very little.

When I had my Ecoboost Lincoln, I made sure to run what Ford recommended for about 10k miles just to make sure it broke in properly.