Thread: Motor Oil

Would like to know what is the favorite motor oil of the members here and how often do they change oil.

My modern vehicle have a computer that shows percentage of oil life left and when it gets down to 25 percent left, I change.

On older vehicles i change every 3000 miles.

Currently i am using Kendall in some of my vehicles and a Penzoil product in others.

Mobile 1 synthetic, every 5k miles.

As above,Mobil 1 syn or Royal purple every 10K miles,filter every 5K.

used to be a Valvoline fan, now i just buy the Napa store brand cuz they told me it's made by Valvoline. saves a few cents and deep down i don't think it really matters. Every 3000, or three months.

Originally Posted by MajorEthanolic

Mobile 1 synthetic, every 5k miles.

Same here,,,,,, 150k & still as clean as day one.

I've used only AMSOIL* SAE 5W-30 Signature Series 100% Synthetic Motor Oil paired with AMSOIL oil filters since my car's first oil change; the oil gets changed every 12k miles. The engine has 165k miles on it so far, has only needed tune-ups, and runs great!

My motivation for going this route was purely environmental; I hope that my less frequent oil changes help offset the dolts who pour their used oil down storm drains.

* I have no affiliation with AMSOIL, which some entrepreneurs sometimes sell as a home business.

Castrol synthetic blend - suppose to be good for 7,500 mi which is great for me I only do about 5k a year And agree with Dzanda - I mainly do it to reduce waste, cost and time so I guess environmental.
My Dad runs AMSOIL in his cars and motorcycles, he's been trying to talk me into using it for years...

I am an auto tech, so changing my oil is easier for me than most. I go 3k at most. Have been using syn blend from a refinery in Shreveport, LA called TruSouth for 15 years in mine and as house oil in customer's cars. Some want a particular oil, so I don't stock anything else. Just order as-needed.
I, personally, am wary of extended mileage oil changes with any oil due to byproducts of combustion contaminating oil.
I do drive my cars forever, tho! I have a family fleet of 6 with 4 having over 200k on them!

I have my oil changed following the manufacturers recommended intervals for severe driving conditions. I use regular oil not synthetics. I get the oil filter changed at each oil change as I see no point in keeping the old filter in use which contains dirty oil already.

The place I found synthetic oil useful was in manual transmissions on those -20/-30C mornings. It made shifting greatly easier when starting out.

Bob

I get mine changed every 3k too. A blend, not sure just what they use, but so far so good.