Does 10w30 blend,synth sheer in summer?

[ziggy]

Hi all! Something I've looked up,n maybe some more info out their.
Does a synth blend sheer in stop n go, and what about in 97 degree F humid temps? Based on a 3000 mile oil change? Or 6 months? I know synthetic would be a lot more stable. I'm it hin too try a Sunoco synth blend 10w30 in a 98 LeSabre soon! But the traffic here sucky.brakes,brakes..summers really humid,pressure ,heat.think it will hold up between April through September,and within 3000 miles?

 

[simple_gifts]

No worries for any SP rated oil, pour in, drive and enjoy.

3800 = very low stress IMHO

 

[blufeb95]

On a Buick 3800 as long as it's got oil in it and coolant isn't finding it's way into the oil it's going to run for a very long time.

 

[PimTac]

You would have to hold it up to the light.

 

[MalibuRam65]

Hi all! Something I've looked up,n maybe some more info out their.
Does a synth blend sheer in stop n go, and what about in 97 degree F humid temps? Based on a 3000 mile oil change? Or 6 months? I know synthetic would be a lot more stable. I'm it hin too try a Sunoco synth blend 10w30 in a 98 LeSabre soon! But the traffic here sucky.brakes,brakes..summers really humid,pressure ,heat.think it will hold up between April through September,and within 3000 miles?

Absolutely a Syn Blend will hold up

 

[ziggy]

Thanks! Times I've run dino oil ,98 Corolla I had , and a 95 neon, havoline...it was good ,even th traffic.but when I got too 3,700 miles 6 months,opening the drain bolt...thick molasses black,stressed n thick looking.you can feel,the car wanted it evacuated lol.you could sense it . ..
Usualys ,at least with the buck,it's not as bad but with synthetic .
Basically,does humid summer heat cause oil too thin out too?

 

[weaponoffreedom]

On a Buick 3800 as long as it's got oil in it and coolant isn't finding it's way into the oil it's going to run for a very long time.

dauntless