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In the old days, a tune-up was necessary about every 35,000 miles. It would usually consist of setting the ignition timing, replacing the mechanical breaker points in the ignition, cleaning and adjusting the carburetor and replacing the plug wires and spark plugs. Today, of course, the carburetor’s job is done by fuel injection and the ignition timing and spark are controlled by the engine computer. Few vehicles still have plug wires anymore either, as the distributor was replaced by the computer and a coil-on-plug design which delivers a spark at each spark plug.
But what about the spark plugs themselves, though? How often do they need to be replaced now?
Manufacturers tout an 80k-100k mile service interval on spark plugs now, thanks in part to improvements in plug design and materials. That might be stretching it, however. Remember that if you have a 100,000-mile spark plug, its electrode is worn down 4/5 of the way at 80,000 miles. A worn electrode means a wider spark plug gap, which can mean a loss of power and fuel economy.
Worse, though, spark plugs that have been in the engine’s cylinder head for years and tens of thousands of miles have a tendency for their threads to seize. A seized spark plug can be pretty difficult to extract from the head and can mean a hefty repair bill before it’s all said and done.
If your vehicle was originally equipped with a specific type of spark plug, it’s a smart idea to keep that design of plug when you replace them. It’s also a good idea to check a few other things under the hood when it’s time to replace the plugs, including
--Air filter
--Cabin air filter
--Belts and hoses
--Charging system
--Starter
--O2 sensor
--All vacuum lines and junctions
Today’s cars may be a lot less maintenance-intensive, but that doesn’t mean “maintenance free.” Remember that a well-maintained car is a reliable and strong-running car…and don’t put off maintenance like spark plugs just because it doesn’t need to be done very often!
The GOODYEAR FALL PROMOTION EVENT is a manufacturer’s online rebate. This is a consumer tire rebate event for select Goodyear tires. To qualify for this event, you must purchase your eligible tires between September 9, 2024 and the expiry date of December 31, 2024. One (1) rebate form per sales receipt/invoice. Limit one (1) online rebate per qualifying purchase, per visit. Limit four (4) rebates per individual consumer, per promotion period. Federal and provincial taxes are calculated on the selling price before the rebate. Minimum purchase of a set of four (4) tires is required to receive the full rebate amount. Rebates are also available per tire on a prorated basis with a minimum purchase of four (4) tires and a maximum purchase of six (6) tires per sales receipt/invoice. The consumer must submit the rebate form online along with a copy of the sales receipt/ invoice on or before January 31, 2025. Offer is only open to residents of Canada and is only valid for tire purchases from a participating Canadian retailer that operates a retail location in Canada. This rebate offer cannot be combined with any other Goodyear rebate offer. This is a consumer rebate that also applies to business-to-business purchases, excluding tires sold to national accounts, government accounts, P&R accounts, secondary supply points, other retailers or any other delivery for the account of Goodyear. All sales receipts/invoices submitted must include detailed product and customer sold-to information to be eligible for rebates. The participating retailer is solely responsible for determining the selling price of the tires without direction from Goodyear. Visit goodyear.ca or see a participating retailer for more details.
Aditional terms and conditions: Goodyear reserves the right to substitute a cheque of equal value in lieu of a Goodyear Prepaid Mastercard® or Virtual Account at its discretion. Fraudulent submissions will not be honoured and may be prosecuted. Goodyear is not responsible for non-complying rebate submissions. Non-complying rebate submissions will not be honoured, acknowledged or returned. Void where taxed, restricted or prohibited by law. All decisions made by Goodyear (or its authorized representatives) relating to the validity of any submissions are final and binding. This promotion is subject to all federal, provincial, and local laws and regulations. Retain copies of the materials you submit.
Tire rebate will be issued in the form of one (1) Goodyear Mastercard Prepaid Card or Virtual Account. Card/Virtual Account is issued by Peoples Trust Company under licence from Mastercard International. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated. No cash access or recurring payments. Card can be used where Mastercard is accepted. Virtual Account can be used online or for phone/mail orders where Mastercard is accepted. Card/Virtual Account valid for up to six (6) months; unused funds will be forfeited after the valid thru date. Card terms and conditions apply.
2Service rebate: Offer valid with a minimum qualifying service addition. Minimum purchase of $150 required to get $50 rebate on qualifying service, including tire installation, parts and labour. Qualifying service purchase must be made with the purchase of a set of four (4) qualifying Goodyear tires from September 9, 2024 to the expiry date of December 31, 2024 and only at participating Canadian Goodyear Tire & Service Network retailers. Offer is only open to residents of Canada with mailing addresses in Canada. Tire purchase, shop supplies, disposal fees and taxes are excluded from this offer. Cannot be combined with other Goodyear service offers.
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