Pennzoil products

[Shannow]

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It would also be interesting to know how much of a MPG hit they take, using significantly heavier oils...

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In my Camira (1.8 ltire J-Car Wagon), I changed from 15W-40 to 25W-70 in the middle of winter (gets down to minus 7C occasionally, have some days that it doesn't get above 1 or 2C).

Mileage took a solid 10% hit.

Went to straight 30 that summer, and the mileage was back to where it was 15W-40.

 

[Curious Kid]

Amazing.

I'm just curious and forgive what may hint of ignorance about living in Australia...but does one at times experience dusty conditions, for which if finding it's way into the oil one's engine/bearings might find the thicker oil films that are inherent with such heavier wt's of lubricant beneficial?

Take care, and thanks for the references.

 

[Nickdfresh]

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i find it interesting that in america my honda is speced for 5w20 year round. in australia it is speced for 10w40 and 15w40.

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That's because the Hondas they ship to Australia have looser engines to handle the thicker oil.

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The Japanese themselves are leading a push towards gradually thinner oils in Asia...

 

[Nickdfresh]

I do wish we had the 5W-40 PP (basically rebranded Shell HELIX) widely available here in the states...

It's rare as hens' teeth...

 

[Shannow]

Helix "Ultra" has been available here for 20 (?) years. Was 5W-40, originally advertised as XHVI, and became "synthetic" after the reason for one of the stickies on this page.

Still available, but I don't think the Oz Helix is likely any sort of holy grail

 

[XS650]

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It would also be interesting to know how much of a MPG hit they take, using significantly heavier oils...

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In my Camira (1.8 ltire J-Car Wagon), I changed from 15W-40 to 25W-70 in the middle of winter (gets down to minus 7C occasionally, have some days that it doesn't get above 1 or 2C).

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If there were a way to pour bitumen out of an oil bottle, some Aussie would use it in his car.