10W30 all year round in warm/cold climate?

Seasonal oil viscosity changes are an ancient relic. Once multiweight oils came out, they became unnecessary in all but the most extreme climates. Run

Someone schrieb:

Sufficient every 12 months. In Europe oil changes are done every year or 20000-40000km depending on th manufacturer of the car.

Mobil 1 is good for all year use within these parameters.

Don't waste money!

Your welcome!

Do the following three things:

1. Locate or buy an owners manual for that car.
2. Open it to the section dealing with oil changes.
3. Read and follow the guidance in that section. It will be far more accurate than information gotten in discussion groups.

It is a question of personal preference.

I change more frequently, but consider it a form of "insurance."

You might post your inquiry at Bob's the Oil Guy...

link:

Thanks to all for you input. I do have the owner's manual for the car and I followed what it says. But this being a 1993, I figured there must have been improvement in engine oil fabrication over the last 15 years and since I don't do much mileage, maybe I can relax my twice a year 5w30, 10W30 oil changes.

I like the suggestion of keeping 10W30 oil all year round in my second Volvo which I only use 2-5 times per winter. On that one, every time I do an oil change in the spring, the oil looks exactly like the oil I added in the fall.

I use regular 10W30 in the non-turbo Volvo year round, it doesn't get quite as cold here as you mentioned, but I've never had any trouble at all one way or another. I change it every 5K miles and it's looking pretty yucky by then. Car has just shy of 300K on it and the motor has been holding up great.

Mobil-1 EP 5W-30 will do a fine job of lubricating your Volvo year round. No need to use 10W-30 in the summer or winter.

Well Roadie, you are wrong. The manual in question was written 15 years ago and automotive lubricants have moved forward quite a lot in that time.

The 5W simply means an oil with better low temperature cranking characteristics. Once hot, the 5W-30 and 10W-30 oils have approximately the same viscosity.

I wasn't posting an inquiry, but responding to a question.

He would do better to follow those directions OR to ask the dealer for Volvo's current recommended oil for older motors than to follow the guesses that have come forth so far on this forum.