I installed some bosch spark plugs in my 98 malibu 2.4L and some one said I should have used Delco, is it ok?

Question

The spark plugs are running just fine, but someone said that GM's use delco spark plugs. Is anything going to happen because I chose to use Bosch spark plugs? I chose those because the associate said I didn't have to gap them.

Answer 1

i own a repair shop,and you used the best spark plug that money can buy in it,,there way better than ac-delco,are,and they will out last them also,,you don't need to change those though,,you did a good thing for your car,,drive it,,there good for about 40 thousand miles of driving,,good luck i hope this help,s.

Answer 2

Brand name Vs. Generic. General Motors always uses AC Delco parts. I've gotten 100k miles on a set of them. Many will say Bosch is better, Some will give you a different brand name, The worst thing that will happen is they might wear out sooner. I've never seen a measurable difference from one brand of spark plugs to another.

I do believe Bosch makes a better auto part, on average than most other manufacturers for the average street vehicle. But then I may be biased, I was an engineer for Bosch's Braking systems for several years

Answer 3

Bosch are fine. Probably better than the Delco - I bet they were
a little more expensive.

Answer 4

I found out the hard way, don't use Bosch plugs. They produce a smaller spark. I use Autolite Plat. Plugs.

Answer 5

just for some future wisdom always check your gap. you never know if someone dropped the plug or what have you. not to mention not every car is gapped the same. so always check. as for plugs, not all plugs are the same. there are some plugs built w/ better metals,ect for performance(spark) but for your application you won't ruin the car. i would check your gap if you know how.

Answer 6

Bosch are better. You can run any kinda spark plug you want there are many brands. You are fine.

Answer 7

bosch is a better brand than AC Delco. It doesn't make a difference.

Answer 8

gm comes with delco you can use any brand. but bosch sparkplugs are very poor quality, i would use a/c or ngk. etc. bosch plugs break alot. more than any other brand i have ever seen. ngk are really good quality plugs. get platinums.

Answer 9

Brand isn't important as long as the size and threading are correct.

As for "gapping" them - that you should have done even though the associate said you didn't "have to." Proper gapping insures long-term performance of the "spark" ability.

Answer 10

as long as you use a good grade plug you shouldn't have any problems. you should always check the gap on your plugs when there put in. if you check yours you will see there not all the same.