5w-20 Oil - Toyota Yaris Forums

ttufrosty · 05-26-2007, 11:46 PM

Usually I run Mobil 1 5w-30 in my Yaris (3dr LB, Manual) but for this trip I am taking right now I wanted to try 5w-20 to see what a difference it would make in mileage. Normally I get about 38-40 mpg on the 5w-30 to and from work all highway miles, no A/c, just me.

Yesterday on the first leg of the trip from Dallas to Kansas City, fullly load, 3 passengers, and A/C on all the way with the 5w-20 (Mobil 1) I averaged 39 mpg. Based on the initial part of this trip it seems the 5w-20 does improve the gas mileage. Also consider I was driving between 70 and 80 the entire way.

Take it as you will, I will update further as the trip goes on.

05-26-2007, 11:46 PM	#1
ttufrosty Drives: 2007 Yaris Liftback Join Date: Sep 2006 Location: DFW, USA Posts: 50	5w-20 Oil Usually I run Mobil 1 5w-30 in my Yaris (3dr LB, Manual) but for this trip I am taking right now I wanted to try 5w-20 to see what a difference it would make in mileage. Normally I get about 38-40 mpg on the 5w-30 to and from work all highway miles, no A/c, just me. Yesterday on the first leg of the trip from Dallas to Kansas City, fullly load, 3 passengers, and A/C on all the way with the 5w-20 (Mobil 1) I averaged 39 mpg. Based on the initial part of this trip it seems the 5w-20 does improve the gas mileage. Also consider I was driving between 70 and 80 the entire way. Take it as you will, I will update further as the trip goes on.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
best synthetic oil and m/t oil??	doodoo	DIY / Maintenance / Service	122	04-03-2017 09:43 PM
Help with oil change specs	autophile	DIY / Maintenance / Service	31	04-25-2011 10:22 PM
Synthetic Oil	Kaotic Lazagna	DIY / Maintenance / Service	122	09-20-2007 04:40 PM
metal particles in oil	007 hatch	DIY / Maintenance / Service	9	06-22-2007 03:56 AM
Motor oil debate - interesting info but a long read.	mikeukrainetz	General Yaris / Vitz Discussion	6	12-10-2006 09:16 PM