What brand and what weight oil do you guys use also what motor are you running?

I had some tell me to run 10w-40 in the 305 I had.
I am going to be running a 350 just curious as to what others use.

 

how you like your burger cooked and with which condiments and sides do you like too?

be prepared for hundreds of opinions because that's all it is. The oil topic has been beaten to death but welcome to the fun world of cars.

But here I'll answer your direct question

FL resident it goes down to 30's in the winter and low 90's in the summer

Stang- what ever is on sale at ADV auto 5w30
3rd gen- what ever is on sale at adv auto 5 w 30
4th gen- what ever is on sale at adv auto 5 w 30
mazda- what ever is on sale at adv auto 5 w 30
honda- what ever is on sale at adv auto 5 w 30
nissan- what ever is on sale at adv auto 5 w 30
mercruiser 5.7L- what ever is on sale at adv auto 5 w 30
lawnmower- walmart 5 w 30
weed whacker- 2 stroke weedeater or poulin brand
lawn edger- same as weed whacker
pressure washer- walmart 5 w 30

 

I've been using Mobil 1 Fully Synthetic 15/50 since 1993 with no issues. But a lot of engines have their own "personalities" and do run better on other types of oil synthetic or not.

 

I've been debating between Mobil 1 10w30 or royal purple 10w30

 

Try each brand on two oil changes. See if there are any noticeable differences. How often do you change your oil regardless of it being synthetic or not?

 

Usually 3 months 3000 miles sometimes a little longer maybe a hundred miles or so usually pretty good about keeping on top of it

 

Well since you are planing on using the same weights and both synthetics, you should be fine on trying both brands at two different oil changes.

 

I use what the owners manual says, regardless of mileage.
1986 Pontiac Trans Am 5w-30 (100k) Castrol, Valvoline, Penzoil
1972 Pontiac Ventura 5w-30 (20k on a rebuild) Castrol, Valvoline, Penzoil
2004 Pontiac GTO 5w-30 (127k) Castrol, Valvoline, Penzoil
2005 Chevy Cobalt SS SC 5w-30 Synthetic as required (74k) Mobil 1
2005 Chevy Trailblazer 5w-30 (60k) Castrol, Valvoline, Penzoil

 

Ah, the monthly "oil brand/type/weight flame war thread".

Barely got it in before the end of the month.

 

Is it a roller , or flat tappet engine?