Corolla 2000 Ve Maintenance

You could try using Castrol GTX High Mileage 10W-40, especially in the summer to reduce oil consumption, and maybe 5W-30 in winter if it's not as hot then. They are also part synthetic.

http://www.castrol.com/castrol/sectiongenericarticle.do?categoryId=9045415&contentId=7081140

http://www.walmart.com/ip/Castrol-GTX-High-Mileage-10W40-Motor-Oil-5-qt/17253560

http://www.walmart.com/ip/Castrol-GTX-High-Mileage-5W30-Motor-Oil-5-qt/17253557

If it has 5-year long-life coolant that is over 5 years old, it should be replaced... Hard to tell by just looking at it.

Check level in expansion tank. (Hot and Cold lines) You can also check if it's full at pressure cap when engine is completely cooled down.

http://www.walmart.com/ip/Super-Tech-Antifreeze/16645420

http://www.walmart.com/ip/Super-Tech-50-50-Antifreeze-Coolant-Pre-Mix/16928010

Were spark plugs and primary O2 sensor ever replaced?

Are you using E10 (10% ethanol) 87 PON (pump octane number RON+MON/2) gas? Have you tried ethanol-free 91 PON gas, especially in extreme heat conditions and at close to sea level? Mine runs so much better, stronger, and more efficiently on ethanol-free 91, I'm sticking with it.

You could try using Castrol GTX High Mileage 10W-40, especially in the summer to reduce oil consumption, and maybe 5W-30 in winter if it's not as hot then. They are also part synthetic.

http://www.castrol.com/castrol/sectiongenericarticle.do?categoryId=9045415&contentId=7081140

http://www.walmart.com/ip/Castrol-GTX-High-Mileage-10W40-Motor-Oil-5-qt/17253560

http://www.walmart.com/ip/Castrol-GTX-High-Mileage-5W30-Motor-Oil-5-qt/17253557

If it has 5-year long-life coolant that is over 5 years old, it should be replaced... Hard to tell by just looking at it.

Check level in expansion tank. (Hot and Cold lines) You can also check if it's full at pressure cap when engine is completely cooled down.

http://www.walmart.com/ip/Super-Tech-Antifreeze/16645420

http://www.walmart.com/ip/Super-Tech-50-50-Antifreeze-Coolant-Pre-Mix/16928010

Were spark plugs and primary O2 sensor ever replaced?

Are you using E10 (10% ethanol) 87 PON (pump octane number RON+MON/2) gas? Have you tried ethanol-free 91 PON gas, especially in extreme heat conditions and at close to sea level? Mine runs so much better, stronger, and more efficiently on ethWhanol-free 91, I'm sticking with it.

The next oil change should be in about a week. I'll ask for Castrol 10w-40. Thank you!

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About the Coolant. I have no idea about its age. This morning, when the engine was 100% cooled down (about 10 hours off) the level mark was like 1 inch below the FULL mark.

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I guess they were replaced, but I don't really know. I'll change the spark plugs myself. Shouldn't be so difficult. Any tip/suggestion?

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About the fuel.. I fuel about twice a week at BJ's (membership club, Sam's / Costco kind).

I use the premium one, 93 octane. There's a sticker stating "May contain up to 10% Ethanol".

Any Gas brand that still sells Ethanol-free fuel?

Thank you verrrry much!

You mean Castrol GTX HIGH MILEAGE 10W-40 oil.

Original plugs are Denso # 3324 {SK16R11} Iridium. I like my Bosch # 4501 Platinum IR (Iridium) Fusion.

http://www.rockauto.com/catalog/x,carcode,1432903,parttype,7212

Spark plugs wire sets: http://www.rockauto.com/catalog/x,carcode,1432903,parttype,7224

Denso # 2344205 upstream O2 sensor: http://www.rockauto.com/catalog/x,carcode,1432903,parttype,5132

Scroll down to see Miami stations selling ethanol-free gas (90/91 octane): http://pure-gas.org/index.jsp?stateprov=FL

You mean Castrol GTX HIGH MILEAGE 10W-40 oil.

Original plugs are Denso # 3324 {SK16R11} Iridium. I like my Bosch # 4501 Platinum IR (Iridium) Fusion.

http://www.rockauto.com/catalog/x,carcode,1432903,parttype,7212

Spark plugs wire sets: http://www.rockauto.com/catalog/x,carcode,1432903,parttype,7224

Denso # 2344205 upstream O2 sensor: http://www.rockauto.com/catalog/x,carcode,1432903,parttype,5132

Scroll down to see Miami stations selling ethanol-free gas (90/91 octane): http://pure-gas.org/index.jsp?stateprov=FL

Part Synthetic or Full Synthetic?

Part Synthetic or Full Synthetic?